1. Department of Endocrinology, Key Laboratory of Endocrinology, Ministry of Health, Peking Union Medical College Hospital, Beijing, P.R. China.
2. ENT Department, Peking Union Medical College Hospital, Beijing, P.R. China.
3. Department of Pathology, Peking Union Medical College Hospital, Beijing, P.R. China.
4. Department of Radiology, Peking Union Medical College Hospital, Beijing, P.R. China.
5. Department of Nuclear Medicine, Peking Union Medical College Hospital, Beijing, P.R. China.