[1] Univ Washington, Sch Publ Hlth, Dept Publ Hlth Genet, Seattle, WA 98195 USA
[2] Univ Washington, Sch Publ Hlth, Dept Epidemiol, Seattle, WA 98195 USA
[3] Univ Washington, Sch Publ Hlth, Dept Biostat, Seattle, WA 98195 USA
[4] Univ Washington, Sch Med, Dept Genome Sci, Seattle, WA USA
[5] Univ Washington, Sch Pharm, Dept Pharmaceut, Seattle, WA 98195 USA
[6] Univ Montana, Montana Canc Inst Fdn, Missoula, MT 59812 USA
[7] Univ Montana, Dept Biomed & Pharmaceut Sci, Missoula, MT 59812 USA
[8] Childrens Mercy Hosp & Clin, Div Pediat Pharmacol & Med Toxicol, Kansas City, MO USA