1. Khon Kaen University Hospital, Nai Mueang, Mueang Khon Kaen, Khon Kaen, Thailand
2. Phramongkutklao Hospital, Ratchathewi, Bangkok, Thailand
3. Department of Medicine, Division of Rheumatology, Faculty of Medicine, Siriraj Hospital, Bangkoknoi, Bangkok, Thailand
4. Rajavithi Hospital, Thung Phaya Thai, Ratchathewi, Bangkok, Thailand
5. Department of Internal Medicine, Rheumatology Division, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok, Thailand
6. Department of Medicine, Division of Rheumatology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
7. Department of Internal Medicine, Division of Rheumatology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
8. Allergy & Rheumatology Unit, Division of Medicine, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, Thailand
9. Celltrion, Inc., Incheon, Republic of Korea