1. Rheumatology and Immunology Center, Department of Medicine, China Medical University Hospital, Taichung, Taiwan;
2. Translation Medicine Laboratory, Department of Medical Research, China Medical University Hospital, Taichung, Taiwan;
3. School of Medicine, China Medical University, Taichung, Taiwan;
4. Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei, Taiwan;
5. School of Health Care Administration, Taipei Medical University, Taipei, Taiwan;
6. York Health Economics Consortium, York, UK;
7. Pfizer Inc, Collegeville, PA, USA;
8. Pfizer Inc, Groton, CT, USA