Dr. Radoslav Mangaldzhiev is the Head of the Department of Medical Oncology at the Specialized Hospital for Oncological Diseases “Prof. Dr. M. Mushmov”, Sofia. He is a member of the Еxpert board of BJCN-MORE, 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.