Author Contributions: Dr Eggener 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: Prasad, Drazer, Huo, Eggener.
Acquisition of data: Prasad, Drazer, Huo.
Analysis and interpretation of data: Prasad, Drazer, Huo, Hu, Eggener.
Drafting of the manuscript: Prasad.
Critical revision of the manuscript for important intellectual content: Prasad, Drazer, Huo, Hu, Eggener.
Statistical analysis: Prasad, Drazer, Huo.
Obtained funding: Eggener.
Administrative, technical, or material support: Hu, Eggener.
Study supervision: Eggener.
Conflict of Interest Disclosures: The authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Dr Eggener reported that he serves as a consultant to Janssen Pharmaceutical, Accuray, and Myriad Genetics; receives grants from Partnership for Cures and Visualase Incorporated; and serves on speakers bureaus for Janssen Pharmaceutical. No other disclosures were reported.
Funding/Support: Dr Hu reported that he received a Department of Defense Physician Training Award (W81XWH-08-1-0283).
Role of the Sponsors: The Department of Defense had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; and preparation, review, or approval of the manuscript.
Additional Contributions: We acknowledge the contribution of Mara Schonberg, MD, MPH (Department of Medicine, Harvard Medical School, Boston, Massachusetts) for assistance with study concept and design. Dr Schonberg did not receive any compensation for her assistance.