University of Central Punjab, Lahore,
Pakistan
Federal University of Goia,
Brazil
Bhojia Dental College & Hospital, Baddi, Himachal Pradesh,
India
Sinhgad Dental College and Hospital
India
Islamic Azad University Central Tehran Branch,
Iran
Osaka University, Osaka,
Japan
Federal Research and Clinical Centre of Physical-Chemical Medicine, Moscow,
Russia
Medical University “Prof. Dr. Paraskev Stoyanov”-Varna,
Bulgaria