Royal Military College, Canada.
Rzeszów University, Poland.
Mayo Clinic at Florida, USA.
German Heart Center & Charité University Medicine Berlin, Germany.
Military Hospital in Tegucigalpa, Honduras.
UCSF Benioff Children’s Hospital, San Francisco.
Aljazzera cardiac center, Saudi Arabia.
Cairo University, Egypt.
Sheikh Khalifa Medical City, UAE & Cleveland Clinic, USA
Dalhousie University, Canada.
Avalon University School of Medicine, USA.
Mälardalen University, Sweden.
Institute of Physiology and Basic Medicine, Russia.
Bahrain Defence Force hospital, Bahrain.
Pennsylvania University, USA.
Medical University of Wroclaw, Poland.Saint John Paul II Hospital "Vratislavia Medica" Poland.
King Abdulaziz Medical City, Saudi Arabia.
Tianjin Medical University, China.
Sri Ramachandra University, Chennai.
National Heart Institute of Cairo, Egypt.
Aster Medical center & Aster Hospital, UAE.
Pleven Medical University, Bulgaria.
San Diego Regenerative Medicine Institute, USA.
Fundação Getulio Vargas Aracaju, Brazil.
Coimbra Polytechnic Institute, Portugal.
King Salman Heart Centre, King Fahad Medical City, Saudi Arabia.
University Hospital of Leipzig, Germany.
Sharm International Hospital, Egypt.