[1] University of Pittsburgh Graduate School of Public Health,Department of Epidemiology
[2] University of Pittsburgh Cancer Institute,Division of Cancer Prevention and Population Science
[3] University of the West Indies,Faculty of Medical Sciences
[4] University of Pittsburgh Cancer Institute,Division of Gynecologic Oncology
[5] University of Pittsburgh Graduate School of Public Health and University of Pittsburgh Cancer Institute,Department of Human Genetics
[6] Trinidad and Tobago Cancer Society,Tobago Branch
[7] Tobago Health Studies Office,Department of Epidemiology and Biostatistics, Downstate School of Public Health
[8] State University of New York,undefined