Dr. Suchanya Sithirungson, a fellow in Sleep Otolaryngology from the Department of Otorhinolaryngology, Faculty of Medicine Siriraj Hospital, Mahidol University, attended a “Visiting Fellowship in Sleep Surgery” at the Division of Sleep Surgery, Department of Otorhinolaryngology–Head and Neck Surgery, Hospital of the University of Pennsylvania, USA. This program was held from May 19th – June 13th, 2025.