1. Division of Endocrinology and Metabolism, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
2. Graduate School, Yonsei University College of Medicine, Seoul, Republic of Korea
3. Institute of Endocrine Research, Yonsei University College of Medicine, Seoul, Republic of Korea
4. Pituitary Tumor Center, Severance Hospital, Seoul, Republic of Korea
5. Department of Neurosurgery, Yonsei University College of Medicine, Seoul, Republic of Korea