1. Department of Internal Medicine; National Taiwan University Hospital and National Taiwan University College of Medicine; Taipei Taiwan
2. Department of Medicine; National Taiwan University Hospital Jin-Shan Branch; New Taipei City Taiwan
3. Center of Infection Control; National Taiwan University Hospital; Taipei Taiwan
4. Department of Parasitology; National Taiwan University College of Medicine; Taipei Taiwan
5. Department of Medical Research; China Medical University Hospital; Taichung Taiwan
6. China Medical University; Taichung Taiwan