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• Graduated from the Catholic University of Korea, where he also received his doctorate and lectured in the Department of Otolaryngology.
• Completed internships in voice disorders and swallowing reflex disorders at Columbia University in New York.
• Member of the American National Spasmodic Dysphonia Association, Vice-Chairman of the Korean International Medical Association, Board Member of the Gangnam District Medical Tourism Association in Seoul.

• Graduated from the Department of Anesthesiology, Catholic University
• Work experience: physician at "Severance", Head of the Department of Anesthesiology at "MizMedi".
• Full member of the Korean Society of Anesthesiologists, Society of Obstetric Anesthesia, Spondylodynia Research Society, American Society of Obstetric Anesthesia

• Deputy Director of "Hokuto", Head of the Otolaryngology Department.
• Conducted research work in the Immunology Department at the Roswell Park Cancer Institute in America.
• Completed an internship at the House Ear Institute in Los Angeles.
• Certified otolaryngologist, surgeon, member of the American Association for Cancer Research.

• Trained in the USA and Canada.
• Certified otolaryngologist and clinical oncologist.

• Specialization: treatment of dizziness, pediatric otitis, chronic sinusitis, deviated nasal septum.
• Graduated from the University of Ulsan.
• Worked as a physician and clinical instructor at "Asan" Medical Center.
• Member of the Korean Society of Otorhinolaryngology, Korean Society of Audiology.

1993–1999 – studied at the Sechenov Moscow Medical Academy.

1999–2001 – residency in "otolaryngology" at the Medical Center of the Administration of the President of the Russian Federation. Combined studies with work at City Clinical Hospital No. 71.

2001 – studied abroad, completed the Temporal Bone Surgical Dissection course in Los Angeles.

2001–2012 – otorhinolaryngologist at Clinical Hospital No. 1 of the Administration of the President of the Russian Federation.

Since 2012 – head of the otolaryngology department at Clinical Hospital No. 1 of the Administration of the President of the Russian Federation.

Author of a number of scientific works, articles, and publications on surgical treatment of ENT diseases. Successfully combines scientific work with practical work, performs planned and emergency ENT surgeries.

Specialization: treatment of ENT pathologies, ENT surgery, diagnosis and treatment of ENT diseases

Dan Fliss is a widely known Israeli ENT doctor specializing in surgical oncology of the head, neck, and skull base. The doctor's wide recognition is due to his many years of experience in performing the most complex operations and tumor removals using innovative advanced methods in endoscopic and laparoscopic surgery.

Dr. Fliss received his medical education at the University of Bologna, then continued his education, specializing at the Moshe Soroka Clinical Center at a university in Israel.

The doctor also completed an internship at the "Sunnybrook" scientific medical center and specialized in neurosurgery of the cervical spine at the University Hospital in Bern, Switzerland.

Currently, Dr. Fliss is the head of the Department of Otolaryngology — Head and Neck Surgery and Maxillofacial Surgery at the "Sourasky" Medical Center.

Dan Fliss is the author of 170 clinical and scientific articles, 50 chapters in medical textbooks and scientific publications on surgery of the head, neck, and skull base, as well as the author and editor of 5 books in the same field.