Author Contributions: Dr Herzig had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Herzig, Howell, Ngo, Marcantonio.
Acquisition of data: Herzig, Howell.
Analysis and interpretation of data: Herzig, Howell, Ngo, Marcantonio.
Drafting of the manuscript: Herzig, Ngo.
Critical revision of the manuscript for important intellectual content: Herzig, Howell, Ngo, Marcantonio.
Statistical analysis: Herzig, Howell, Ngo.
Obtained funding: Herzig.
Administrative, technical, or material support: Herzig, Howell, Ngo, Marcantonio.
Study supervision: Herzig, Marcantonio.
Financial Disclosures: None reported.
Funding/Support: Dr Herzig was funded by grant T32HP11001 from the Health Resources and Services Administration of the Department of Health and Human Services to support the Harvard Medical School Fellowship in General Medicine and Primary Care.
Role of the Sponsor: The funding organization had no role in the design and conduct of the study; in the collection, analysis, and interpretation of the data; or in the preparation, review, or approval of the manuscript.
Disclaimer: The study contents are solely the responsibility of the authors and do not necessarily represent the official views of the Department of Health and Human Services.