title: Reply.
authors: Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan.
authors: Yi-Chia
authors: YC
authors: Lee
authors: Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan.
authors: Wei-Chih
authors: WC
authors: Liao
authors: Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan.
authors: Ming-Shiang
authors: MS
authors: Wu
authors: Department of Medicine, Michael E. DeBakey VA Medical Center, Baylor College of Medicine, Houston, Texas.
authors: David Y
authors: DY
authors: Graham