1. Nutritional Sciences, Medicine and Dalla Lana School of Public Health, University of Toronto; Toronto; Ontario; Canada
2. Department of Biostatistical Sciences; Wake Forest School of Medicine; Winston-Salem; North Carolina
3. University of Texas Health Sciences; San Antonio; Texas
4. Department of Epidemiology; Colorado School of Public Health; University of Colorado; Aurora; Colorado
5. Cedars-Sinai Medical Center; Los Angeles; California
6. Division of Public Health Sciences; Wake Forest School of Medicine; Winston-Salem; North Carolina