Submitted for Publication: October 2, 2014; final revision received January 27, 2015; accepted February 15, 2015.
Published Online: April 2, 2015. doi:10.1001/jamaoto.2015.0347.
Study concept and design: Choby, Ferris, Duvvuri.
Acquisition, analysis, or interpretation of data: J. Kim, Ling, Abberbock, Mandal, S. Kim, Ferris.
Drafting of the manuscript: Choby, J. Kim, Ling, Abberbock, Mandal, Ferris.
Critical revision of the manuscript for important intellectual content: Choby, J. Kim, Ling, Abberbock, Mandal, S. Kim, Duvvuri.
Statistical analysis: Choby, J. Kim, Abberbock, Ferris.
Obtained funding: Ferris, Duvvuri.
Administrative, technical, or material support: Mandal, S. Kim, Ferris, Duvvuri.
Study supervision: Mandal, Ferris, Duvvuri.
Conflict of Interest Disclosures: None reported.
Funding/Support: This work was funded in part by the Department of Veterans Affairs Career Development Award and the PNC Foundation (Dr Duvvuri).
Role of the Funder/Sponsor: The funding sources had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Disclaimer: This manuscript does not represent the views of the US government or the Department of Veterans Affairs.