Royal Military College, Canada.
University of Ottawa, Canada.
Mayo Clinic at Florida, USA.
German Heart Center & Charité University Medicine Berlin, Germany.
Aljazzera cardiac center, Saudi Arabia.
Cairo University, Egypt.
Sheikh Khalifa Medical City, UAE & Cleveland Clinic, USA
Institute of Physiology and Basic Medicine, Russia.
King Abdulaziz Medical City, Saudi Arabia.
Tianjin Medical University, China.
Sri Ramachandra University, Chennai.
Aster Medical center & Aster Hospital, UAE.