1. Department of Internal Medicine, Shin Kong Wu Ho-Su Memorial Hospital, Taipei City, Taiwan.
2. Department of Pathology and Laboratory Medicine, Shin Kong Wu Ho-Su Memorial Hospital, Taipei City, Taiwan.
3. Division of Infectious Diseases, Department of Internal Medicine, Shin Kong Wu Ho-Su Memorial Hospital, Taipei City, Taiwan.
4. School of Medicine, Catholic Fu-Jen University, New Taipei City, Taiwan.