Author Contributions: Drs Ross and Busch had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Ross, Busch.
Acquisition of data: Ross.
Analysis and interpretation of data: Ross, Bradley, Busch.
Drafting of the manuscript: Ross.
Critical revision of the manuscript for important intellectual content: Ross, Bradley, Busch.
Statistical analysis: Ross, Busch.
Administrative, technical, or material support: Busch.
Study supervision: Busch.
Financial Disclosures: None reported.
Funding/Support: No external funding was used for this research project. Dr Ross is a scholar in the Robert Wood Johnson Clinical Scholars Program at Yale University, sponsored by the Robert Wood Johnson Foundation.
Role of the Sponsor: The Robert Wood Johnson Foundation had no role in the design or conduct of the study; collection, management, analysis, or interpretation of the data; or preparation, review, or approval of the manuscript.
Previous Presentation: The cancer prevention service analyses were presented at the Academy Health 2005 Annual Research Meeting; June 26, 2005; Boston, Mass.