I-T Chyuan1, T-H Tsai2, T-H Chang3, C-S Wu4. 1. Department of Internal Medicine, Cathay General Hospital, Taipei, Taiwan Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan. 2. Department of Dermatology, Cathay General Hospital, Taipei, Taiwan. 3. Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan. 4. Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan Department of Nursing, Oriental Institute of Technology, New Taipei City, Taiwan wucs@mail.femh.org.tw.