Department of Thoracic Surgery; Military Medical Academy, Sofia, Bulgaria
Chairmen of Bulgarian Association of Young Surgeons
Department of Thoracic Surgery; Military Medical Academy, Sofia, Bulgaria
Chairmen of Bulgarian Association of Young Surgeons
Head of Breast Unit, Department of Thoracic Surgery, Military Medical Academy, Sofia, Bulgaria
Assistant in Clinic of Pediatric Diseases; PhD of Dermatology; UMHAT "Georgi Stranski", Pleven, Bulgaria;
Vice Chairman of Bulgarian Association of Young Surgeons
Head of Department of Thoracic Surgery, Military Medical Academy, Sofia, Bulgaria
Head of Clinic of Endoscopic Endocrine Surgery and Coloproctology, Military Medical Academy, Sofia, Bulgaria
Albany Medical College, Albany, NY; University of Pittsburgh Medical Center, Pittsburgh, PA, USA
Kasr AlAiny Faculty of Medicine, Cairo, Egypt
Klinikum rechts der Isar, II. Medizinische Klinik, Molekulare Gastroenterologie, München, Germany
Laboratory of Atherosclerosis Research,Department of Cardiology, Democritus University of Thrace, Alexandroupolis, Greece
Medical University of Sofia, Bulgaria.
Faculty of Medicine, Sofia University "St. Kliment Ohridski", Sofia, Bulgaria
Breast Cancer Researcher in Breast Unit, Military Medical Academy, Sofia, Bulgaria
Medical University of Sofia, Bulgaria
Bulgarian Association of Young Surgeons
Clinic of Endoscopic Endocrine Surgery and Coloproctology,
Military Medical Academy, Sofia, Bulgaria
Center of Transfusional Hematology,
Military Medical Academy of Sofia, Bulgaria
Obstetrics & Gynecology Clinic, Medical University of Pleven, Bulgaria
Department of Medical Biology, Medical University of Plovdiv, Bulgaria
Head of General Surgery Clinic, Military Medical Academy, Sofia, Bulgaria
Head of Clinic of Dermatology, Medical University of Pleven, Bulgaria
Head of Clinic of Pathology, Medical University of Pleven, Bulgaria
Head of Clinic of Medical Oncology, Military Medical Academy of Sofia, Bulgaria
Head of Clinic of Pulmonology, Military Medical Academy of Sofia, Bulgaria
Head of Department of Neurosurgery, Tokuda Hospital Sofia, Bulgaria
Department of Plastic Surgery,Military Medical Academy, Sofia, Bulgaria
Head of Clinic of Psychiatry, Military Medical Academy of Sofia, Bulgaria
Department of Thoracic Surgery, Military Medical Academy, Sofia, Bulgaria
Division of Orthopedics and Trauma Surgery, University of Perugia, Santa Maria della Misericordia Hospital, Perugia, Italy.
General Surgery Department, Università degli Studi di Perugia, Perugia, Italy
Numune Training and Research Hospital, Ankara, Turkey
Coloproctology Unit,
Parc Tauli University Hospital, Barcelona, Spain
Head of Clinic of Pediatric Cardiac Surgery, Universitäts klinikum Heidelberg, Germany
Dicle University, Turkey
European Medical Center, Breast Center, Moscow, Russia
Clinic of Anaesthesiology, Herz und Kreislaufszentrum Rotenburg, Germany
Clinic of Cardiac Surgery, Prague, Czech
General Surgery, Harlem Hospital Center, Columbia University, New York, USA
Department of GI Surgery, Command Hospital (WC), Chandimandir, Haryana, India