Author Contributions: Dr Talcott 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: Talcott, Shipley, Slater, Zietman.
Acquisition of data: Talcott, Rossi, Zietman.
Analysis and interpretation of data: Talcott, Clark, Niemierko, Zietman.
Drafting of the manuscript: Talcott, Clark, Slater, Zietman.
Critical revision of the manuscript for important intellectual content: Talcott, Rossi, Shipley, Clark, Slater, Niemierko, Zietman.
Statistical analysis: Talcott, Clark, Niemierko.
Obtained funding: Talcott, Shipley, Zietman.
Administrative, technical, or material support: Rossi, Slater,
Study supervision: Talcott, Slater, Zietman.
Financial Disclosures: Dr Slater reported that his brother is an employee of Optivus Technology, a company that builds proton radiation facilities. The other authors reported no disclosures.
Funding/Support: This research was supported by the Bertucci Genitourinary Cancer Research Fund, Massachusetts General Hospital, Boston, MA.
Role of the Sponsor: The Bertucci Genitourinary Cancer Research Fund 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 would like to acknowledge Anita E. Rodrigues, BA, Center for Outcomes Research, Massachusetts General Hospital, Boston; and Catherine Reyes, BS, Center for Outcomes Research, Massachusetts General Hospital, Boston, MA, and currently MD candidate, Harvard Medical School, for contacting eligible patients, enrolling patients, and carrying out data collection; and Mary M. Lunt, BSN, Loma Linda University Medical Center, Loma Linda, CA, for contacting potential study participants. Ms Rodrigues and Ms Reyes were compensated for their roles in the study. Ms Lunt, an employeee at LLUMC, was not.
This article was corrected online for typographical errors on 3/16/2010.