Working for 25 years in the ENT head and neck surgery in Bucharest, at Coltea Clinical Hospital and Carol Davila University of Medicine and Pharmacy. Special interest in rhinology and head and neck oncology.

Michael G. Stewart, MD, MPH is Professor and Chairman of the Department of Otolaryngology-Head & Neck Surgery at Weill Cornell Medical College/NewYork-Presbyterian Hospital. He also serves as Senior Associate Dean for International Affairs and Affiliations for the Medical College and in the past he also served as Senior Associate Dean for Clinical Affairs. He received a B.E. degree summa cum laude from Vanderbilt University, and an M.D. from Johns Hopkins University School of Medicine. He completed residency training at Baylor College of Medicine in the Houston, Texas, and received his M.P.H. degree from the University of Texas School of Public Health, Houston.  He is the author of 2 textbooks, and more than 30 book chapters and 150 peer-reviewed publications. He is the former Editor-in-Chief of The Laryngoscope journal (2011-19) and is a former Director and the Past-President of the American Board of Otolaryngology-Head & Neck Surgery and past Executive Vice President of the American Rhinologic Society. He is President-Elect of the American Laryngological, Rhinological and Otological (aka the Triological) Society.  He has received three Distinguished Service Awards from the American Academy of Oto-HNS, and Presidential and Vice Presidential Citations from four different national societies.  He has been a visiting professor at more than 40 institutions, and has given more than 500 invited lectures, both nationally and internationally.

Born on August 31, 1966. Graduated from Hacettepe University Faculty of Medicine in 1989. He was trained otolaryngology specialization between 1989-1993 in Hacettepe University Faculty of Medicine Department of Otolaryngology. He has worked in Ankara Başkent University Faculty of Medicine Department of Otolaryngology as Assistant Professor between 1995-1999. In He was granted the title of Associate Professor in November 2000 and was granted the title of Professor of Otolaryngology in March 2017.

His special fields of interest are; Aesthetic and functional nasal surgery, aesthetic surgery of the face, endoscopic sinus surgery, sinus surgeries performed with balloon (balloon sinuplasty), computer assisted sinus surgery – surgical navigation, treatment of snoring and sleep apnea and reconstructive surgery of head and neck (repairing tissue and function losses).

Prof. Dr. Teoman Dal has many presentations in national and international congresses and published book chapters and numerous scientific papers published in national and international journals