1. Department of Intensive Care Medicine, Chi-Mei Medical Center, Liouying Tainan, Taiwan, ROC
2. Department of Internal Medicine, Cardinal Tien Hospital, Taipei County, Taiwan, ROC
3. Department of Laboratory Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan, ROC
4. Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan, ROC