About the Authors

Michelle R. Simpson-Abelson

Affiliation Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, United States of America

Erin E. Childs

Affiliation Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, United States of America

M. Carolina Ferreira

Affiliation Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, United States of America

Shrinivas Bishu

Affiliation Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, United States of America

Heather R. Conti

Affiliation Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, United States of America

Sarah L. Gaffen

sarah.gaffen@pitt.edu

Affiliation Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, United States of America

Competing Interests

SLG has received a research grant from Novartis, travel reimbursements and honoraria from Novartis, Amgen, Eli Lilly, Janssen and Pfizer, and consults for Janssen. There are no other conflicts of interest. This does not alter the authors’ adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: MRSA SLG. Performed the experiments: MRSA MCF EEC SB HRC. Analyzed the data: MRSA EEC SLG. Wrote the paper: MRSA SLG.