About the Authors

Yoon-Kyoung Sung

Roles Conceptualization, Formal analysis, Investigation, Methodology, Project administration, Resources, Writing – original draft

scbae@hanyang.ac.kr

Affiliations Division of Rheumatology, Brigham and Women’s Hospital, Boston, Massachusetts, United States America, Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, South Korea

Kazuki Yoshida

Roles Investigation, Methodology

Affiliation Division of Rheumatology, Brigham and Women’s Hospital, Boston, Massachusetts, United States America

Femke H. M. Prince

Roles Investigation, Methodology

Affiliations Division of Rheumatology, Brigham and Women’s Hospital, Boston, Massachusetts, United States America, Department of Paediatrics/ Paediatric Rheumatology, Erasmus MC Sophia Children’s Hospital, Rotterdam, The Netherlands

Michelle L. Frits

Roles Investigation, Methodology

Affiliation Division of Rheumatology, Brigham and Women’s Hospital, Boston, Massachusetts, United States America

Soo-Kyung Cho

Roles Investigation, Writing – original draft

Affiliations Division of Rheumatology, Brigham and Women’s Hospital, Boston, Massachusetts, United States America, Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, South Korea

Jung-Yoon Choe

Roles Investigation, Resources

Affiliation Department of Rheumatology, Catholic University of Daegu School of Medicine, Daegu, South Korea

Hye-Soon Lee

Roles Investigation, Resources

Affiliation Department of Rheumatology, Hanyang University Guri Hospital, Guri, South Korea

Jisoo Lee

Roles Investigation, Resources

Affiliation Division of Rheumatology, Ewha Womans University Mokdong Hospital, Seoul, South Korea

Shin-Seok Lee

Roles Investigation, Resources

Affiliation Department of Rheumatology, Chonnam National University Hospital, Gwangju, South Korea

Dae-Hyun Yoo

Roles Investigation, Resources

Affiliation Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, South Korea

Simon M. Helfgott

Roles Investigation, Resources

Affiliation Division of Rheumatology, Brigham and Women’s Hospital, Boston, Massachusetts, United States America

Nancy A. Shadick

Roles Investigation, Resources

Affiliation Division of Rheumatology, Brigham and Women’s Hospital, Boston, Massachusetts, United States America

Michael E. Weinblatt

Roles Data curation, Investigation, Resources

Affiliation Division of Rheumatology, Brigham and Women’s Hospital, Boston, Massachusetts, United States America

Daniel H. Solomon

Roles Conceptualization, Data curation, Investigation, Methodology, Resources, Supervision, Writing – review & editing

Affiliation Division of Rheumatology, Brigham and Women’s Hospital, Boston, Massachusetts, United States America

Sang-Cheol Bae

Roles Data curation, Investigation, Resources, Supervision, Writing – review & editing

Affiliation Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, South Korea

Competing Interests

YKS receives research grant support from Pfizer, BMS, Eisai, and JW pharma. SMH has received consultancies and speaking fees from Abbott Ltd. and Genentech (amounts less than $10,000 for each). NAS and MEW is supported by grants from Crescendo Biosciences, UCB Pharma, Briston Myers Squibb for BRASS. NAS receives research grant support from BRASS. AMGEN, Mallinckrodt, NIH-NIAMS K24-AR055989, NIH 1 RO1 GK127118-01A1, and NIH P30 AR070253-01 and has received consultancies from BMS (amount less than $10,000). DHS receives salary support from the NIH (NIAMS K24 AR 055989) and institutional research grants from Eli Lilly, Amgen, and CORRONA. He also receives royalties from UpTo Date, and serves in unpaid roles in studies funded by Pfizer. SCB was supported by a grant of the Korea Healthcare technology R&D Project, Ministry for Health and Welfare, Republic of Korea (HI10C2020) for KORONA and has received research grants from Abbott Ltd., Bristol Myers Squibb Pharmaceutical Ltd., Eisai Inc., GlaxoSmithKline Ltd., MSD Ltd. and Pfizer Inc. This does not alter our adherence to PLOS ONE policies on sharing data and materials.