1. Department of Epidemiology; University of Michigan School of Public Health; Ann Arbor MI USA
2. Department of Environmental Health Sciences; University of Michigan School of Public Health; Ann Arbor MI USA
3. Department of Biostatistics; University of Michigan School of Public Health; Ann Arbor MI USA
4. Department of Psychiatry; University of Pittsburgh School of Medicine; Pittsburgh PA USA
5. Department of Epidemiology; University of Pittsburgh Graduate School of Public Health; Pittsburgh PA USA
6. Department of Preventive Medicine; Rush University Medical Center; Chicago IL USA
7. Division of Reproductive Endocrinology and Infertility; University of Michigan Health System; Ann Arbor MI USA