Study concept and design: Holford, Meza, Warner, Moolgavkar, Levy.
Acquisition of data: Holford, Meza.
Analysis and interpretation of data: Holford, Meza, Meernik, Jeon, Moolgavkar, Levy.
Drafting of the manuscript: Holford, Meza, Warner, Meernik, Jeon, Levy.
Critical revision of the manuscript for important intellectual content: Holford, Meza, Warner, Jeon, Moolgavkar, Levy.
Statistical analysis: Holford, Meza, Meernik, Jeon, Levy.
Obtained funding: Holford, Moolgavkar, Levy.
Administrative, technical, or material support: Holford, Meza.
Study supervision: Holford, Warner.
Conflict of Interest Disclosures: All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest and none were reported.
Funding/Support: This study was funded in part by the National Cancer Institute (R01-CA-152956).
Role of the Sponsor: The funding source 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.
Additional Information: Further resources for this article appear at http://resources.cisnet.cancer.gov/projects/#shg/tcpd.