1. From the International Centre for Allied Health Evidence, School of Health Sciences, University of South Australia, Adelaide, Australia (M.N.M, S.L.H.); School of Nutrition and Health Promotion, Arizona State University, Phoenix, AZ (S.P.H.); and Departments of Biostatistics (A.L., S.E.J.) and Epidemiology (V.J.H.), School of Public Health, University of Alabama at Birmingham, AL.