About the Authors

Candace H. Feldman

chfeldman@partners.org

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

Linda T. Hiraki

Affiliation Division of Rheumatology, The Hospital for Sick Children, Toronto, Canada

Huichuan Lii

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

John D. Seeger

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

Seoyoung C. Kim

Affiliations Division of Rheumatology, Immunology and Allergy, Department of Medicine, Brigham and Women’s Hospital, Boston, Massachusetts, United States of America, Division of Pharmacoepidemiology and Pharmacoeconomics, Brigham and Women’s Hospital, Boston, Massachusetts, United States of America

Competing Interests

Candace H. Feldman receives research funding from Pfizer Pharmaceuticals. This commercial source played no role in this study’s conception, design, analysis or presentation and does not alter adherence to all PLOS ONE policies. Linda T. Hiraki, Huichuan Lii, John D. Seeger, and Seoyoung C. Kim have no competing interests relevant to this article to disclose.

Author Contributions

Conceived and designed the experiments: CHF LTH HL JDS SCK. Analyzed the data: CHF LTH HL JDS SCK. Contributed reagents/materials/analysis tools: CHF LTH HL JDS SCK. Wrote the paper: CHF LTH HL JDS SCK.