Corresponding Author

Byung-Wan Lee MD, PhD

Division of Endocrinology and Metabolism, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea

Institute of Endocrine Research, Yonsei University College of Medicine, Seoul, South Korea

Correspondence

Byung-Wan Lee, MD, PhD, Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea. Telephone: +82 2 2228 1938, Fax: +82 2 393 6884,

Email: bwanlee@yuhs.ac