Accepted for Publication: February 15, 2011.
Author Contributions: Ms Martires and Dr Cowen had full access to all 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: Martires and Cowen. Acquisition of data: Martires, Pavletic, Citrin, Pavletic, and Cowen. Analysis and interpretation of data: Martires, Baird, Citrin, Hakim, and Cowen. Drafting of the manuscript: Martires, Baird, and Cowen. Critical revision of the manuscript for important intellectual content: Citrin, Hakim, Pavletic, and Cowen. Administrative, technical, or material support: Citrin and Pavletic. Supervision: Cowen.
Financial Disclosure: None reported.
Funding/Support: This study was supported by the Intramural Research Program of the National Institutes of Health (NIH), Center for Cancer Research, National Cancer Institute, and by the Clinical Research Training Program, a public-private partnership supported jointly by the NIH and Pfizer Inc (via a grant to the Foundation for the NIH from Pfizer Inc) (Ms Martires).