About the Authors

Olivia L. Bordiuk

Affiliation New England Geriatric Research Education and Clinical Center, Bedford Division, Edith Nourse Rogers Memorial Veterans Hospital, Bedford, Massachusetts, United States of America

Karen Smith

Affiliation New England Geriatric Research Education and Clinical Center, Bedford Division, Edith Nourse Rogers Memorial Veterans Hospital, Bedford, Massachusetts, United States of America

Peter J. Morin

Affiliation New England Geriatric Research Education and Clinical Center, Bedford Division, Edith Nourse Rogers Memorial Veterans Hospital, Bedford, Massachusetts, United States of America

Mikhail V. Semënov

mikhail.semenov@va.gov

Affiliation New England Geriatric Research Education and Clinical Center, Bedford Division, Edith Nourse Rogers Memorial Veterans Hospital, Bedford, Massachusetts, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MVS. Performed the experiments: OLB KS MVS. Analyzed the data: OLB KS PJM MVS. Wrote the paper: KS MVS.