Department of Otorhinolaryngology, Zagazig University
Egypt
Department of Surgical oncology, Tata Medical Center, Kolkata
India
DOCTOR FACULTY MEMBER, İZMİR KAVRAM VOCATIONAL SCHOOL
Turkey
The second medical school of Chengdu affiliated to Chongqing medical university
China
Department of Science and Translational Medicine, University of Campania “Luigi Vanvitelli”
Italy
Clinical associate professor of medicine , University of Western Australia
Australia
Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok
THAILAND