1. David B. Buller and Mary Klein Buller are with Klein Buendel, Inc., Golden, CO. Dallas R. English is with the Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia. Jody Simmons, Melanie Wakefield, and Suzanne Dobbinson are with the Centre for Behavioural Research in Cancer, Cancer Council Victoria, Melbourne. James A. Chamberlain is with the Cancer Epidemiology Centre, Cancer Council Victoria.