Corresponding Author

Myeong Sang Yu MD, PhD

Division of Sleep Surgery, Department of Otolaryngology, Stanford University School of Medicine, Stanford, California, USA

Department of Otorhinolaryngology-Head and Neck Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea

Correspondence

Myeong Sang Yu, Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Republic of Korea

Email: dryums@gmail.com