[1] Univ Melbourne, Melbourne Sch Populat Hlth, Ctr Mol Environm Genet & Analyt Epidemiol, Parkville, Vic 3010, Australia
[2] Univ Melbourne, Dept Med, Parkville, Vic 3010, Australia
[3] Mayo Clin, Dept Hlth Sci Res, Scottsdale, AZ USA
[4] Queensland Inst Med Res, Canc & Populat Studies Grp, Herston, Qld 4006, Australia
[5] Queensland Inst Med Res, Conjoint Gastroenterol Lab, Pathol Queensland, Clin Res Ctr,Royal Brisbane & Womens Hosp Res Fdn, Herston, Qld 4006, Australia
[6] Univ Queensland, Sch Med, Herston, Qld, Australia
[7] Univ Queensland, Dept Mol & Cellular Pathol, Herston, Qld, Australia
[8] Royal Melbourne Hosp, Ludwig Inst Canc Res, Parkville, Vic 3050, Australia
[9] Flinders Univ S Australia, Flinders Ctr Canc Prevent & Control, Adelaide, SA, Australia
[10] Monash Univ, Dept Epidemiol & Prevent Med, Clayton, Vic 3800, Australia
[11] Auckland City Hosp, New Zealand Familial Gastrointestinal Canc Regist, Auckland, New Zealand
[12] Middlemore Hosp, Dept Gastroenterol, Auckland 6, New Zealand
[13] Royal Brisbane & Womens Hosp, Dept Gastroenterol & Hepatol, Brisbane, Qld, Australia
[14] Prince Wales Hosp, Hereditary Canc Clin, Randwick, NSW 2031, Australia
[15] Canc Council Victoria, Canc Epidemiol Ctr, Carlton, Vic, Australia
[16] Univ So Calif, Dept Prevent Med, Los Angeles, CA 90089 USA
[17] Mt Sinai Hosp, Samuel Lunenfeld Res Inst, Toronto, ON M5G 1X5, Canada
[18] Canc Care Ontario, Toronto, ON, Canada
[19] Univ Hawaii, Ctr Canc, Honolulu, HI 96822 USA
[20] Fred Hutchinson Canc Res Ctr, Canc Prevent Program, Seattle, WA 98104 USA