Prof. Klaus Vogt, M.D., D.D.S., Ph.D. (Rendsburg, Germany)
Prof. Gilbert J. Nolst Trenité, M.D., Ph.D. (Academic Medical Center Amsterdam, the Netherlands)
Ass. Prof. Viacheslav G. Merkulov, M.D., Ph.D. (Medem International Clinic and Hospital, Saint Petersburg, Russia)