1. Department of Cardiology, Zvezdara University Medical Center, Belgrade, Serbia;
2. Faculty of Medicine, University of Belgrade, Belgrade, Serbia;
3. Institute for Medical Research, Military Medical Academy, Belgrade, Serbia;
4. Institute for Physiology and Biochemistry, University of Belgrade, Belgrade, Serbia;
5. Department of Cardiology, University Hospital Zemun, Belgrade, Serbia;
6. Departments of Cardiology, Research and Education, General Hospital Celje, Celje, Slovenia;
7. Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia;
8. Clinic for Rheumatology and Clinical Immunology, Military Medical Academy, Belgrade, Serbia;
9. Department of Cardiology, Campus Virchow, Charité Universitätsmedizin Berlin, Berlin, Germany;
10. Innovative Clinical Trials, Department of Cardiology and Pneumology, University of Medicine Göttingen, Germany;
11. Applied Cachexia Research, Department of Cardiology, Charité-University Medical School, Campus Virchow-Klinikum Berlin, Germany;
12. Institute for Statistics, Faculty of Organizational Sciences, University of Belgrade, Belgrade, Serbia;
13. Institute of Endocrinology, Clinical Center of Serbia, Belgrade, Serbia