[1] Brandon Reg Hosp, Grad Med Educ, Brandon, FL USA
[2] H Lee Moffitt Canc Ctr & Res Inst, Dept Canc Epidemiol, Tampa, FL USA
[3] Vanderbilt Univ, Med Ctr, Dept Epidemiol, Nashville, TN USA
[4] Vanderbilt Inst Global Hlth, Nashville, TN USA
[5] Univ Sao Paulo, Sch Med, Sao Paulo, Brazil
[6] Inst Nacl Salud Publ, Cuernavaca, Morelos, Mexico
[7] Univ S Florida, Dept Epidemiol & Biostat, Tampa, FL USA