Dr. Radoslav Mangaldzhiev is Head of the Department of Medical Oncology at the Specialized Hospital for Oncological Diseases in Sofia. He is a member of the Bulgarian Cancer Scientific Society (BCSS), the European Society for Medical Oncology (ESMO), the Bulgarian Association for Chemotherapy. President of the Association of Medical Oncologists. Dr. Mangaldzhiev graduated from the Medical University in Sofia in 1996. He has a specialty of medical oncology and a specialty of dermatology and venereology.