Egyptian Ministry of Health, Egypt
Liverpool Hospital, Australia
University of Nevada School of Medicine, USA
NM Virani Wockhardt Hospital, India
Federal University, Brazil
Medical University of Athens, Greece
Mashhad medical university,Iran
Ben-Gurion University, Israel
Allama Iqbal Medical College, Pakistan
Cardiff University, UK
Iran
Tribhuvan University teaching Hospital, Nepal
Society of Cardiology, Cuba