Organisation
Croatian Cardiac Society Working Group on e-Cardiology
Symposium President
Goran Krstacic (HR)
Co-directors
Davor Milicic (HR)
Enno van der Velde (NL)
Symposium Secretary
Mario Ivanusa (HR)
Organizing Commitee
Goran Krstacic (HR)
Mario Ivanusa (HR)
Scientific Commitee
Goran Krstacic (HR), Mario Ivanusa (HR), Davor Milicic (HR), Aleksandar Vcev (HR), Enno van der Velde (NL), Nico Bruining (NL), Mikhail Rudenko (RUS), Tatiana Kharchenko (RUS), Robert Steiner (HR), Enrico Gianluca Caiani (I), Peter van Dam (NL), Elnur Smajic (BiH), Nihad Mesanovic (BiH), Robert Bernat (HR), Dragan Gamberger (HR), Diana Delic Brkljacic (HR), Jadranka Separovic-Hanzevacki (HR), Viktor Persic (HR), Alen Ruzic (HR), Jure Mirat (HR), Hrvoje Vrazic (HR)
Contacts
Prof. Goran Krstacic MD, PhD, FESC
Prof. Mario Ivanusa MD, PhD, FESC
Draskoviceva 13, HR-10000 Zagreb, Croatia
www.ekardiologija.kardio.hr
This email address is being protected from spambots. You need JavaScript enabled to view it.
+385 (1) 455-03-32
The symposium covered the most interesting areas of information technologies applied in various fields of cardiology. Cardiologists, general practitioners, anaesthesiologists, medical equipment developers, medical physicists and other experts from Germany, Croatia, Italy, Bosnia & Herzegovina, Russia and the Netherlands took part in the event held on April, 4, 2014 in Zagreb, Croatia. CARDIOMETRY as an innovative theory of heart cycle analysis developed by the R&D team at Russian New University was among the key topics of the Symposium. Prof. Mikhail Rudenko, one of the advocates of the CARDIOMETRY philosophy, reported on the basic concepts of the theory and the hemodynamic analyzer CARDIOCODE based thereon. CARDIOCODE is capable of efficient identifying, monitoring and predicting various processes of the human cardiovascular system in their progression. The application of the device in practice permits to reduce mortality rate by 40%. Such results were obtained by Dr. V.V. Chepenko due to the application of the CARDIOCODE device in one of the hospitals in Vladimir region, Russia.
“I am glad to state that an interest to cardiometry and the readiness to apply the theory in medical practice worldwide are significantly increasing”, said Mikhail Rudenko.
At the symposium it was arranged to organize a centralized training in CARDIOMETRY and practical application of the CARDIOCODE device for medical staff from different countries of the world. The device was submitted to the Institute for Cardiovascular Diseases and Rehabilitation, Zagreb, Croatia.
A good chance is given Croatian practitioners to save many patients’ lives and increase the efficiency of diagnostics of different heart and blood vessel diseases with the use of the CARDIOPCODE device.
We are happy to present to you our video materials covering Mr. Rudenko’s report at the Symposium CRO-e-CARDIOLOGY 2014 (English & Russian).
Papers
First published in Cardiologia CROATICA. 2014;9(3-4)
Exercise testing to stratify risk in asymptomatic moderate and severe aortic stenosis
Zumreta Kušljugić1*, Fahir Baraković1, Larisa Dizdarević-Hudić1, Mirza Dilić2, Elnur Smajić1, Melika Avdagić1, Katarina Kovačević-Divković1, Amira Bijedić1
1 University Clinical Center Tuzla, Tuzla, Bosnia and Herzegovina
2 Clinical Center University of Sarajevo, Sarajevo, Bosnia and Herzegovina
* Corresponding author phone: +387 (35) 303-500, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Asymptomatic aortic stenosis, Treadmill stress, Testing, Prognosis
Imprint
Zumreta Kušljugić, Fahir Baraković, Larisa Dizdarević-Hudić, Mirza Dilić, Elnur Smajić, Melika Avdagić, Katarina Kovačević-Divković, Amira Bijedić. Exercise testing to stratify risk in asymptomatic moderate and severe aortic stenosis; Cardiometry; No.4; May 2014; p. 99; doi:10.12710/cardiometry.2014.4.99. Available from: http://www.cardiometry.net/files/no4-may-2014/severe-aortic-stenosis.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
Cardiometry as a new fundamental scientific field in cardiology
Mikhail Y. Rudenko1*, Vladimir A. Zernov1, Olga K. Voronova1
1 Russian New University, Moscow, Russian Federation
* Corresponding author phone: +7 (495) 925-03-83, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Cardiometry, ECG, Rheo, Hemodynamics, Mathematical model of blood flow
Imprint
Mikhail Y. Rudenko, Vladimir A. Zernov, Olga K. Voronova. Cardiometry as a new fundamental scientific field in cardiology; Cardiometry; No.4; May 2014; p. 100-101; doi:10.12710/cardiometry.2014.4.100101. Available from: http://www.cardiometry.net/files/no4-may-2014/new-fundamental-scientific-field.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
Theory of chaos and theory of string
Goran Krstačić1*, Antonija Krstačić2
1 Institute for Cardiovascular Prevention and Rehabilitation, Zagreb, Croatia
2 University Hospital Centre “Sestre milosrdnice”, Zagreb, Croatia
* Corresponding author phone: +385 (1) 461-22-90, e-mail:This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Theory of chaos, Fractal, Theory of string
Imprint
Goran Krstačić, Antonija Krstačić. Theory of chaos and theory of string; Cardiometry; No.4; May 2014; p. 102-104; doi:10.12710/cardiometry.2014.4.102104. Available from: http://www.cardiometry.net/files/no4-may-2014/theory-of-chaos.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
Cardiovascular implantable electronic devices and electromagnetic interference
Hrvoje Vražić1,2*, Christof Kolb2
1 University Hospital Dubrava, Zagreb, Croatia
2 German Heart Centre of the State of Bavaria and the Technical University Munich, Munich, Germany
* Corresponding author phone: +385 (1) 290-24-44, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Cardiovascular implantable electronic device, Pacemaker, Implantable cardioverter defibrillator, Electromagnetic interference
Imprint
Hrvoje Vražić, Christof Kolb. Cardiovascular implantable electronic devices and electromagnetic interference; Cardiometry; No.4; May 2014; p. 105-106; doi:10.12710/cardiometry.2014.4.105106. Available from: http://www.cardiometry.net/files/no4-may-2014/implantable-electronic-device.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
Single versus dual chamber implantable cardioverter defibrillator for the avoidance of inappropriate shocks - results from the OPTION trial
Christof Kolb1*
1 German Heart Centre of the State of Bavaria and the Technical University Munich, Munich, Germany
* Corresponding author phone: +49 (89) 1218-2020, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Arrhythmia discrimination, Inappropriate shocks, Implantable cardioverter defibrillator, Pacing, Shock, Survival, Tachyarrhythmias
Imprint
Christof Kolb. Single versus dual chamber implantable cardioverter defibrillator for the avoidance of inappropriate shocks - results from the OPTION trial; Cardiometry; No.4; May 2014; p. 107-108; doi: 10.12710/cardiometry.2014.4.107108. Available from: http://www.cardiometry.net/files/no4-may-2014/implantable-cardioverter-defibrillator.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
Identifying post-myocardial infarction patients at risk by imaging techniques
Nico Bruining1*
1 Thoraxcenter, Erasmus MC, Rotterdam, The Netherlands
* Corresponding author phone: +31 (10) 703-39-34, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Myocardial infarction, Risk stratification, Imaging, Left ventricular function
Imprint
Nico Bruining. Identifying post-myocardial infarction patients at risk by imaging techniques; Cardiometry; No.4; May 2014; p. 109-110; doi:10.12710/cardiometry.2014.4.109110. Available from: http://www.cardiometry.net/files/no4-may-2014/post-myocardial-infarction.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
Magnetic resonance imaging of the heart: more than the morphological analysis
Viktor Peršić1*
1 Thalassotherapija Opatija, Opatija, Croatia
* Corresponding author phone: +385 (51) 202-724, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Magnetic resonance imaging, Perfusion, Tissue characterization
Imprint
Viktor Peršić. Magnetic resonance imaging of the heart: more than the morphological analysis; Cardiometry; No.4; May 2014; p. 111-112; doi: 10.12710/cardiometry.2014.4.111112. Available from: http://www.cardiometry.net/files/no4-may-2014/magnetic-resonance-imaging.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
“To stent or not to stent” debate, and how it can refer to the role of coronary computed tomography angiography in clinical decision-making for stable coronary artery disease
Mladen Jukić1*, Ladislav Pavić1, Ivan Bitunjac2, Joško Bulum3
1 Sunce Clinic Zagreb, Croatia
2 General Hospital “Dr Josip Benčević”, Slavonski Brod, Croatia
3 University Hospital Centre Zagreb, Zagreb, Croatia
* Corresponding author phone: +385 (1) 304-66-66, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Coronary artery disease, Coronary computed tomography angiography, Invasive coronary angiography
Imprint
Mladen Jukić, Ladislav Pavić, Ivan Bitunjac, Joško Bulum. “To stent or not to stent” debate, and how it can refer to the role of coronary computed tomography angiography in clinical decision-making for stable coronary artery disease; Cardiometry; No.4; May 2014; p. 113-115; doi: 10.12710/cardiometry.2014.4.113115. Available from: http://www.cardiometry.net/files/no4-may-2014/coronary-computed-tomography-angiography.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
Quantitative spatial cardiac localization of premature ventricular contractions using the cardiac isochrone positioning system
Peter van Dam1*
1 University of Nijmegen, Nijmegen, The Netherlands
* Corresponding author phone: +31 (62) 219-83-96, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Cardiac isochrone positioning system, Inverse problem, Kinect, Non-invasive premature ventricular contraction localization
Imprint
Peter van Dam. Quantitative spatial cardiac localization of premature ventricular contractions using the cardiac isochrone positioning system; Cardiometry; No.4; May 2014; p. 116-118; doi: 10.12710/cardiometry.2014.4.116118. Available from: http://www.cardiometry.net/files/no4-may-2014/spatial-cardiac-localization.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
Using electronic health records in clinical research
Enno T. van der Velde1*
1 Leiden University Medical Center, Leiden, The Netherlands
* Corresponding author phone: +31 (71) 526-17-95, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Electronic health record systems, Clinical research, Data standardization, Privacy
Imprint
Enno T. van der Velde. Using electronic health records in clinical research; Cardiometry; No.4; May 2014; p. 119-120; doi:10.12710/cardiometry.2014.4.119120. Available from: http://www.cardiometry.net/files/no4-may-2014/electronic-health-records.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
Descriptive and predictive modeling
Dragan Gamberger1*
1 Rudđer Bošković Institute, Zagreb, Croatia
* Corresponding author phone: +385 (1) 456-11-11, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Pattern recognition, Clustering of examples, Data understanding, Random forest algorithm, Example similarity table
Imprint
Dragan Gamberger. Descriptive and predictive modeling; Cardiometry; No.4; May 2014; p. 121-122; doi: 10.12710/cardiometry.2014.4.121122. Available from: http://www.cardiometry.net/files/no4-may-2014/predictive-modeling.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
The process of collecting data for the Acute Myocardial Infarction / Acute Coronary Syndrome Register for the City of Zagreb
Inge Heim1*
1 Institute for Cardiovascular Prevention and Rehabilitation, Zagreb, Croatia
* Corresponding author phone: +385 (1) 461-23-08, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Acute coronary syndrome, Population-based register, Epidemiology, Mortality, Outpatient cardiac rehabilitation program
Imprint
Inge Heim. The process of collecting data for the Acute Myocardial Infarction / Acute Coronary Syndrome Register for the City of Zagreb; Cardiometry; No.4; May 2014; p. 123-125; doi:10.12710/cardiometry.2014.4.123125. Available from: http://www.cardiometry.net/files/no4-may-2014/сoronary-syndrome-register.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
Cardiac image processing techniques
Nihad Mešanović1*, Elnur Smajić1
1 University Clinical Center Tuzla, Tuzla, Bosnia and Herzegovina
* Corresponding author phone: +387 (35) 303-500, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Cardiac image processing, Analysis, Artificial intelligence
Imprint
Nihad Mešanović, Elnur Smajić. Cardiac image processing techniques; Cardiometry; No.4; May 2014; p. 126-127; doi: 10.12710/cardiometry.2014.4.126127. Available from: http://www.cardiometry.net/files/no4-may-2014/cardiac-image-processing.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
mHealth in cardiology
Mario Ivanuša1*
1 Institute for Cardiovascular Prevention and Rehabilitation, Zagreb, Croatia
* Corresponding author phone: +385 (1) 461-23-46, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
mHealth, Telecardiology, Coronary heart disease
Imprint
Mario Ivanuša. mHealth in cardiology; Cardiometry; No.4; May 2014; p. 128-129; doi: 10.12710/cardiometry.2014.4.128129. Available from: http://www.cardiometry.net/files/no4-may-2014/mHealth-in-cardiology.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
Design and implementation of health information systems in cardiology
Elnur Smajić1*, Nihad Mešanović1
1 University Clinical Center Tuzla, Tuzla, Bosnia and Herzegovina
* Corresponding author phone: +387 (35) 303-500, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Health information system, Computer, Cardiology
Imprint
Elnur Smajić, Nihad Mešanović. Design and implementation of health information systems in cardiology; Cardiometry; No.4; May 2014; p. 130-131; doi: 10.12710/cardiometry.2014.4.130131. Available from: http://www.cardiometry.net/files/no4-may-2014/information-systems-in-cardiology.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
Internet-based interventions for cardiovascular prevention: focus on overweight and obesity
Alen Ružić1
1 University Hospital Centre Rijeka, Rijeka, Croatia
* Corresponding author phone: +385 (51) 407-149, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Internet, Obesity, Cardiovascular disease, eHealth, Home-based, Self-delivered
Imprint
Alen Ružić. Internet-based interventions for cardiovascular prevention: focus on overweight and obesity; Cardiometry; No.4; May 2014; p. 132; doi: 10.12710/cardiometry.2014.4.132. Available from: http://www.cardiometry.net/files/no4-may-2014/interventions-for-cardiovascular-prevention.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
Radiation exposure in interventional cardiology
Robert Steiner1*
1 University Hospital Centre Osijek, Osijek, Croatia
* Corresponding author phone: +385 (31) 511-511, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Interventional cardiology, Risk, Radiological protection, Radiation, Imaging
Imprint
Robert Steiner. Radiation exposure in interventional cardiology; Cardiometry; No.4; May 2014; p. 133-134; doi: 10.12710/cardiometry.2014.4.133134. Available from: http://www.cardiometry.net/files/no4-may-2014/radiation-exposure.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
Interventional cardiology in acute coronary syndrome — what is next to do?
Jure Mirat1*
1 Polyclinic Kardioton, Zagreb, Croatia
* Corresponding author phone: +385 (1) 580-27-36, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Acute coronary syndromes, Primary percutaneous coronary interventions, Ischaemic heart diesease
Imprint
Jure Mirat. Interventional cardiology in acute coronary syndrome — what is next to do?; Cardiometry; No.4; May 2014; p. 135-136; doi: 10.12710/cardiometry.2014.4.135136. Available from: http://www.cardiometry.net/files/no4-may-2014/acute-coronary-syndrome.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
Why transradial instead of transfemoral approach for the percutaneous coronary intervention
Hrvoje Pintarić1*
1 University Hospital Centre Sestre milosrdnice, Zagreb, Croatia
* Corresponding author e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Transradial approach, Percutaneous coronary intervention, Learning curve
Imprint
Hrvoje Pintarić. Why transradial instead of transfemoral approach for the percutaneous coronary intervention; Cardiometry; No.4; May 2014; p. 137-138; doi: 10.12710/cardiometry.2014.4.137138. Available from: http://www.cardiometry.net/files/no4-may-2014/percutaneous-coronary-intervention.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
Cardiometry: new options in cardiology
Mikhail Y. Rudenko1*, Vladimir A. Zernov1, Olga K. Voronova1
1 Russian New University, Moscow, Russian Federation
* Corresponding author phone: +7 (495) 925-03-83, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Сardiometry, ECG, Rheo, Hemodynamics, Baroreceptors
Imprint
Mikhail Y. Rudenko, Vladimir A. Zernov, Olga K. Voronova. Cardiometry: new options in cardiology; Cardiometry; No.4; May 2014; p. 139-140; doi: 10.12710/cardiometry.2014.4.139140. Available from: http://www.cardiometry.net/files/no4-may-2014/new-options-in-cardiology.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
Relevance of heart rate variability in assessment of autonomic nervous system function in subjects in perioperative period
Meldijana Omerbegović1*, Jasminka Džemidžić1
1 University Clinical Centre Sarajevo, Sarajevo, Bosnia and Herzegovina
* Corresponding author phone: +387 (33) 297-000, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Heart rate variability, Autonomic nervous system, Perioperative period
Imprint
Meldijana Omerbegović, Jasminka Džemidžić. Relevance of heart rate variability in assessment of autonomic nervous system function in subjects in perioperative period; Cardiometry; No.4; May 2014; p. 141-142; doi: 10.12710/cardiometry.2014.4.141142. Available from: http://www.cardiometry.net/files/no4-may-2014/heart-rate-variability.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
Contributing factors in heart failure development-results from CRO-HF Registry
Duška Glavaš1*, Davor Miličić2, Stojan Polić1, Branka Jurčević Zidar3, Katarina Novak1
1 University Hospital Centre Split, Split, Croatia
2 University Hospital Centre Zagreb, Zagreb, Croatia
3 Public Health Institute of Split and Dalmatian County, Split, Croatia
* Corresponding author phone: +385 (21) 556-111, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Heart failure, Risk factors, Croatia
Imprint
Duška Glavaš, Davor Miličić, Stojan Polić, Branka Jurčević Zidar, Katarina Novak. Relevance of heart rate variability in assessment of autonomic nervous system function in subjects in perioperative period; Cardiometry; No.4; May 2014; p. 143-144; doi: 10.12710/cardiometry.2014.4.143144. Available from: http://www.cardiometry.net/files/no4-may-2014/heart-failure-development.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
Machine learning approach for fetal QRS complexes detection
Dragan Gamberger1*, Goran Krstačić2
1 Rudđer Bošković Institute, Zagreb, Croatia
2 Institute for Cardiovascular Diseases and Rehabilitation, Zagreb, Croatia
* Corresponding author phone: +385 (1) 456-11-11, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
ECG signals, Fetal QRS, Random rules algorithm, Pattern recognition
Imprint
Dragan Gamberger, Goran Krstačić. Machine learning approach for fetal QRS complexes detection; Cardiometry; No.4; May 2014; p. 145; doi: 10.12710/cardiometry.2014.4.145. Available from: http://www.cardiometry.net/files/no4-may-2014/fetal-qrs-complexes-detection.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
Corticosteroids and heart rate variability in spinal cord injury
Antonija Krstačić1*, Goran Krstačić2
1 University Hospital Centre Sestre milosrdnice, Zagreb, Croatia
2 Institute of Cardiovascular Disease and Rehabilitation, Zagreb, Croatia
* Corresponding author phone: +385 (1) 469-70-00, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Cervical spinal cord injury, Corticosteroid therapy, Heart rate variability, Sympathovagal balance
Imprint
Antonija Krstačić, Goran Krstačić; Corticosteroids and heart rate variability in spinal cord injury; Cardiometry; No.4; May 2014; p. 146; doi: 10.12710/cardiometry.2014.4.146. Available from: http://www.cardiometry.net/files/no4-may-2014/spinal-cord-injury.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
CroDiab NET as a powerfull tool for tracking cardiovascular risk factors in diabetic patients: data from Bjelovar-Bilogora County collected during the period from 2001 to 2012
Saša Magaš1*
1 Bjelovar General Hospital, Bjelovar, Croatia
* Corresponding author e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Diabetes mellitus, Cardiovascular risk factors, Cardiovascular complications, Body mass index, Glycated hemoglobin, Hypertension
Imprint
Saša Magaš; CroDiab NET as a powerfull tool for tracking cardiovascular risk factors in diabetic patients: data from Bjelovar-Bilogora County collected during the period from 2001 to 2012; Cardiometry; No.4; May 2014; p. 147-148; doi: 10.12710/cardiometry.2014.4.147148. Available from: http://www.cardiometry.net/files/no4-may-2014/crodiab-net.pdf
First published in Cardiologia CROATICA. 2014;9(3-4)
Evaluation of satisfaction with information system
Nada Hrstić1,2*, Marija Heinrich1,2, Mario Ivanuša1,3, Goran Krstačić1,2
1 Institute for Cardiovascular Prevention and Rehabilitation, Zagreb, Croatia
2 University of Applied Health Studies, Zagreb, Croatia
3 Study Programme in Nursing, Technical College in Bjelovar, Bjelovar, Croatia
* Corresponding author phone: +385-1-4612-290, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Keywords
Information system, Satisfaction, Evaluation
Imprint
Nada Hrstić, Marija Heinrich, Mario Ivanuša, Goran Krstačić; Evaluation of satisfaction with information system; Cardiometry; No.4; May 2014; p. 149-150; doi: 10.12710/cardiometry.2014.4.149150. Available from: http://www.cardiometry.net/files/no4-may-2014/evaluation-of-satisfaction.pdf
