1. Department of Anesthesiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng, Beijing 100730, China
2. Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng, Beijing 100730, China
3. China Pituitary Disease Registry Center, China Pituitary Adenoma Specialist Council, No. 1 Shuaifuyuan, Dongcheng, Beijing 100730, China
4. Department of Parenteral & Enteral Nutrition, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng, Beijing 100730, China
5. Outcomes Research Consortium, 9500 Euclid Ave, Cleveland 44195, Ohio, USA