1. Department of Internal Medicine National Taiwan University Hospital and National Taiwan University College of Medicine Taipei Taiwan
2. National Center for Global Health and Medicine, AIDS Clinical CenterTokyo Japan
3. Stanley Ho Centre for Emerging Infectious Diseases The Chinese University of Hong Kong Shatin Hong Kong China
4. Special Prevention Programme, Department of Health, Centre for Health Protection Hong Kong Special Administrative Region Government Hong Kong China
5. Department of Clinical Laboratory Sciences and Medical Biotechnology National Taiwan University College of Medicine Taipei Taiwan
6. Department of Tropical Medicine and Parasitology National Taiwan University College of Medicine Taipei Taiwan
7. Department of Laboratory Medicine National Taiwan University Hospital Taipei Taiwan