About the Authors

Marilyn L. Moy

marilyn.moy@va.gov

Affiliations Department of Veteran Affairs, Veterans Health Administration, Rehabilitation Research and Development Service, Washington, D. C., United States of America, Pulmonary and Critical Care Medicine Section, VA Boston Healthcare System, Boston, Massachusetts, United States of America, Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, United States of America, Harvard Medical School, Boston, Massachusetts, United States of America

Merilee Teylan

Affiliation Pulmonary and Critical Care Medicine Section, VA Boston Healthcare System, Boston, Massachusetts, United States of America

Nicole A. Weston

Affiliation Pulmonary and Critical Care Medicine Section, VA Boston Healthcare System, Boston, Massachusetts, United States of America

David R. Gagnon

Affiliations Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts, United States of America, VA Cooperative Studies, Boston, Massachusetts, United States of America

Eric Garshick

Affiliations Department of Veteran Affairs, Veterans Health Administration, Rehabilitation Research and Development Service, Washington, D. C., United States of America, Pulmonary and Critical Care Medicine Section, VA Boston Healthcare System, Boston, Massachusetts, United States of America, Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, United States of America, Harvard Medical School, Boston, Massachusetts, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MM EG. Performed the experiments: NW. Analyzed the data: MM MT DG EG. Wrote the paper: MM MT NW DG EG.