1. Department of Orthopaedic Surgery, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, South Korea
2. Department of Obstetrics and Gynecology, Konkuk University School of Medicine, Seoul, South Korea
3. Medical Affairs, Essential Health, Pfizer Pharmaceuticals Korea Ltd., Seoul, South Korea
4. Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, South Korea