About the Authors

Erica Farrand

Contributed equally to this work with: Erica Farrand, Harold R. Collard, Lawrence Block, Mei Lee, Carlos Iribarren

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Validation, Writing – original draft, Writing – review & editing

erica.farrand@ucsf.edu

Affiliation Department of Medicine, University of California San Francisco, San Francisco, CA, United States of America

Harold R. Collard

Contributed equally to this work with: Erica Farrand, Harold R. Collard, Lawrence Block, Mei Lee, Carlos Iribarren

Roles Conceptualization, Funding acquisition, Investigation, Writing – review & editing

Affiliation Department of Medicine, University of California San Francisco, San Francisco, CA, United States of America

Michael Guarnieri

Roles Resources, Writing – review & editing

‡ MG and GM also contributed equally to this work.

Affiliation Kaiser Permanente Medical Group, Kaiser Permanente Northern California, Oakland, CA, United States of America

George Minowada

Roles Resources, Writing – review & editing

‡ MG and GM also contributed equally to this work.

Affiliation Kaiser Permanente Medical Group, Kaiser Permanente Northern California, Oakland, CA, United States of America

Lawrence Block

Contributed equally to this work with: Erica Farrand, Harold R. Collard, Lawrence Block, Mei Lee, Carlos Iribarren

Roles Data curation, Formal analysis

Affiliation Division of Research, Kaiser Permanente Northern California, Oakland, CA, United States of America

Mei Lee

Contributed equally to this work with: Erica Farrand, Harold R. Collard, Lawrence Block, Mei Lee, Carlos Iribarren

Roles Data curation, Project administration, Resources

Affiliation Division of Research, Kaiser Permanente Northern California, Oakland, CA, United States of America

Carlos Iribarren

Contributed equally to this work with: Erica Farrand, Harold R. Collard, Lawrence Block, Mei Lee, Carlos Iribarren

Roles Conceptualization, Funding acquisition, Resources, Supervision, Writing – review & editing

Affiliation Division of Research, Kaiser Permanente Northern California, Oakland, CA, United States of America

Competing Interests

We have read the journal’s policy and one of the authors of this manuscript (Dr. Harold Collard) has the following competing interests: personal fees from Advanced Medical, Polerean, and WebMD, and grants from Pulmonary Fibrosis Foundation outside of the submitted work. These entities provided no funding and had no role in the design, preparation, or submission of this manuscript. The competing interest does not alter our adherence to PLOS ONE policies on sharing data and materials.