1. Department of Epidemiology; School of Public Health and Tropical Medicine; Tulane University; New Orleans LA
2. Section of Reproductive Endocrinology and Infertility; Department of Obstetrics and Gynecology; Louisiana State University School of Medicine; New Orleans LA
3. The Fertility Institute of New Orleans; Mandeville LA
4. Department of Obstetrics and Gynecology; School of Medicine; Tulane University; New Orleans LA