[1] Univ Texas, MD Anderson Canc Ctr, Dept Breast Med Oncol, Unit 424, Houston, TX 77030 USA
[2] Univ Texas, MD Anderson Canc Ctr, Dept Epidemiol, Houston, TX 77030 USA
[3] Univ Texas, MD Anderson Canc Ctr, Dept Biostat, Houston, TX 77030 USA
[4] Emory Univ, Rollins Sch Publ Hlth, Dept Epidemiol, Atlanta, GA 30322 USA
[5] CDCP, Natl Ctr Infect Dis, Div Global Migrat & Quarantine, Surveillance & Epidemiol Branch, Atlanta, GA USA
[6] NCI, Hormonal & Reprod Epidemiol Branch, Bethesda, MD 20892 USA
[7] Emory Univ, Winship Canc Inst, Atlanta, GA 30322 USA
[8] CDCP, Div Canc Prevent & Control, Atlanta, GA USA