Dr. Radoslav Mangaldzhiev is the Head of the Department of Medical Oncology at the Specialized Hospital for Oncological Diseases “Prof. Dr. M. Mushmov”, Sofia. Assistantat the Department of “Nuclear Medicine, Radiotherapy and Medical Oncology” at the Medical University of Sofia. He is a member of the Bulgarian Society of Oncology (BOND), the European Society of Chemotherapy (ESMO), the Bulgarian Association of Chemotherapy. Co-chairman of the Association of Medical Oncologists (SMO). Dr. Mangaldzhiev graduated from the Medical Academy – Sofia in 1996. He has a specialty in medical oncology and a specialty in skin and venereal diseases.