University of Oradea
Romania
IIT CLN2S/CNR Nanotec
Italy
Central Asian University
Uzbekistan
Alexandria university
Egypt
Cedars-Sinai Medical Center
USA
Private Clinic, Ankara
Turkey
Peking university school and hospital of stomatology
China
University of Bologna
Italy
Narodowy Instytut Onkologii
Poland
National Polytechnic Institute
Mexico
Hassan II University,
Morocco
North-West University
South Africa
Rutgers, the State University of New Jersey
Armenia
Polytechnic Institute of Lisbon
Portugal
University of Liverpool
UK
Islamic Azad University
Iran
Medical University of Silesia
Poland
Cedars Sinai Division of Otolaryngology
USA
Federal University of Rio de Janeiro
Brazil
émérite Université Paris centre
USA
University of Vienna , Austria
Austria
Famagusta State Hospital
Cyprus
Imperial College London
UK
University of Monastir
Tunisia
