[1] Fred Hutchinson Canc Res Ctr, Program Epidemiol, 1124 Columbia St, Seattle, WA 98104 USA
[2] Univ Washington, Dept Epidemiol, Sch Publ Hlth, Seattle, WA 98195 USA
[3] Univ Washington, Dept Med, Seattle, WA 98195 USA
[4] Vet Affairs Puget Sound Hlth Care Syst, Div Gastroenterol, Seattle, WA USA
[5] Univ Washington, Seattle, WA 98195 USA
[6] Vet Affairs Puget Sound Hlth Care Syst, Res & Dev, Seattle, WA USA
[7] Fred Hutchinson Canc Res Ctr, Publ Hlth Sci, 1124 Columbia St, Seattle, WA 98104 USA
[8] Seattle Childrens Res Inst, Ctr Child Hlth Behav & Dev, Seattle, WA USA
[9] Univ Washington, Dept Pediat, Seattle, WA 98195 USA
[10] Univ Washington, Nutr Sci Program, Seattle, WA 98195 USA
[11] Fred Hutchinson Canc Res Ctr, Canc Prevent Program, 1124 Columbia St, Seattle, WA 98104 USA