1 Division of Hospital Medicine, Department of Internal Medicine, Taipei City Hospital Zhongxing Branch, Taipei, Taiwan.
2 College of Medicine, National Taiwan University, Taipei, Taiwan.
3 Division of Hospital Medicine, Department of General Medicine, Stanford University, School of Medicine, Stanford, CA, USA.
4 Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, No. 100, Shih-Chuan 1st Road, Sanmin Dist., Kaohsiung City, 80708, Taiwan. ecowarrior.tw@yahoo.com.tw.
5 College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. ecowarrior.tw@yahoo.com.tw.