In Memoriam Prof. Todor Karchev, MD, PhD, DSc

students. Professor Karchev, Prof. G. Kabakchiev and Prof. E. Bogdanov were the first ENT surgeons in Bulgaria, and made instructional videos for ENT operations. As head of the Department of Otorhinolaryngology at the Medical University Sofia from 2000 to 2008, Professor Karchev established close relations with leading clinics in Germany, Austria, Greece, Turkey, South Korea and Great Britain, which paved the way for many young doctors to study their specialties abroad.