University Clinical Center of the Republic of Srbska, Banja Luka, Republic of Srbska, Bosnia and Herzegovina
Institute of Cardiovascular Disease Dedinje, Belgrade, Serbia
University Clinical Centre of Republic of Srpska, Banja Luka, Bosnia and Herzegovina
University Clinical Center of Sarajevo, Sarajevo, Bosnia and Herzegovina
Clinical Hospital Dubrava, Zagreb, Croatia
University Clinic, Banja Luka, Bosnia and Herzegovina
University Clinic Sarajevo, Sarajevo, Bosnia and Herzegovina
Diagnostic and Consultative Center Neoclinic Ead, Sofia, Bulgaria