About the Authors

Graciela S Alarcón

To whom correspondence should be addressed. E-mail: graciela.alarcon@ccc.uab.edu

Affiliation Division of Clinical Immunology and Rheumatology, Department of Medicine, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States of America

Gerald McGwin Jr.

Affiliation Section of Trauma, Burns, and Critical Care, Department of Surgery, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States of America

Michelle Petri

Affiliation Division of Rheumatology, School of Medicine, Johns Hopkins University, Baltimore, Maryland, United States of America

Rosalind Ramsey-Goldman

Affiliation Division of Rheumatology, Northwestern University School of Medicine, Chicago, Illinois, United States of America

Barri J Fessler

Affiliation Division of Clinical Immunology and Rheumatology, Department of Medicine, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States of America

Luis M Vilá

Affiliation Division of Rheumatology, Department of Medicine, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico

Jeffrey C Edberg

Affiliation Division of Clinical Immunology and Rheumatology, Department of Medicine, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States of America

John D Reveille

Affiliation Division of Rheumatology, Department of Medicine, University of Texas Health Science Center at Houston, Houston, Texas, United States of America

Robert P Kimberly

Affiliation Division of Clinical Immunology and Rheumatology, Department of Medicine, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States of America

for the PROFILE Study Group

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

GSA, MP, LMV, JDR, and RPK designed the study. MP, RRG, LMV, BJF, JDR, and RPK enrolled patients. GM, JCE, and RPK analyzed the data. GSA, GM, MP, RRG, LMV, JCE, JDR, and RPK contributed to writing the paper.