About the Authors

Elizabeth Staab

Affiliation Pulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America

Geoffrey M. Thiele

Affiliations Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE, United States of America, Rheumatology Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America

Dillon Clarey

Affiliation Pulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America

Todd A. Wyatt

Affiliations Pulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE, United States of America, Department of Environmental, Agricultural, and Occupational Health, University of Nebraska Medical Center, Omaha, NE, United States of America

Debra J. Romberger

Affiliations Pulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE, United States of America

Adam D. Wells

Affiliation Pulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America

Anand Dusad

Affiliation Rheumatology Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America

Dong Wang

Affiliation Rheumatology Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America

Lynell W. Klassen

Affiliations Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE, United States of America, Rheumatology Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America

Ted R. Mikuls

Affiliations Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE, United States of America, Rheumatology Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America

Michael J. Duryee

Affiliations Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE, United States of America, Rheumatology Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America

Jill A. Poole

japoole@unmc.edu

Affiliation Pulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JAP TRM GMT TAW. Performed the experiments: ES DC ADW AD DW MJD JAP. Analyzed the data: ES GMT TAW DJR LWK TRM JAP. Contributed reagents/materials/analysis tools: GMT TAW DJR LWK TRM JAP. Wrote the paper: ES GMT DC TAW DJR ADW AD DW LWK TRM MJD JAP.