1. Centre for Molecular, Environmental; Genetic and Analytic Epidemiology; The University of Melbourne; Parkville; Victoria; Australia
2. Familial Cancer Laboratory; Queensland Institute of Medical Research; Brisbane; Queensland; Australia
3. Department of Medical Genetics; Mayo Clinic; Rochester; Minnesota
4. Department of Colorectal Medicine and Genetics; The Royal Melbourne Hospital; Parkville; Victoria; Australia
5. Familial Cancer Centres; Cabrini Health and Southern Health; Victoria; Australia
6. Department of Laboratory Medicine and Pathology; Mayo Clinic; Rochester; Minnesota
7. Department of Preventive Medicine; University of Southern California; Los Angeles; California
8. Mount Sinai Hospital; University of Toronto; Toronto; Ontario; Canada
9. University of Hawaii Cancer Research Center; Honolulu; Hawaii
10. Cancer Prevention Program; Fred Hutchinson Cancer Research Center; Seattle; Washington
11. Flinders University Centre for Cancer Prevention and Control; Bedford Park; South Australia; Australia
12. Familial Cancer Centre; Peter MacCallum Cancer Centre; Victoria; Australia
13. Cancer Epidemiology Centre; Cancer Council Victoria, Melbourne; Victoria; Australia
14. Conjoint Gastroenterology Laboratory, Royal Brisbane and Women's Hospital Research Foundation; Clinical Research Centre and Queensland Institute of Medical Research; Brisbane; Queensland; Australia
15. Queensland Clinical Genetics Service; Royal Children's Hospital; Herston; Queensland; Australia
16. Department of Medicine; University of Colorado School of Medicine and Denver VA Medical Center; Denver; Colorado
17. Department of Medicine; University of North Carolina; Chapel Hill; North Carolina
18. New Zealand Familial Gastrointestinal Cancer Registry; Auckland City Hospital; Auckland; New Zealand
19. Genetic Services and Familial Cancer Program of Western Australia, Perth, School of Paediatrics and Child Health; University of Western Australia; Australia