Sheng-Huei Wang1, Kuang-Yu Wei1, Yao-Chia Liu2, Chao-Hsin Huang3. 1. Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC. 2. Department of Anesthesiology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC. 3. Division of Pulmonary Medicine, Department of Internal Medicine, Tri-service General Hospital Songshan Branch, Taipei, Taiwan, ROC. slider4520@icloud.com.