[1] Univ Hawaii, Ctr Canc, Canc Prevent & Control Program, Honolulu, HI 96822 USA
[2] Univ Massachusetts, Sch Publ Hlth & Hlth Sci, Amherst, MA 01003 USA
[3] Bashkir State Med Univ, Ufa, Russia
[4] Boston Univ, Med Ctr, Boston, MA USA
[5] Univ Southern Calif, Inst Hlth Promot & Dis Prevent Res, Keck Sch Med, Los Angeles, CA USA