1. Department of Obstetrics and Gynecology, University of Rochester, Rochester, Minnesota, USA
2. Department of Growth and Reproduction, University of Copenhagen, Copenhagen, Denmark
3. Department of Family and Community Medicine, University of Missouri-Columbia, Columbia, Missouri, USA
4. National Center for Environmental Health, Centers for Disease Control and Prevention, Division of Laboratory Sciences, Atlanta, Georgia, USA
5. Department of Pediatrics, Division of Endocrinology, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Los Angeles, California, USA
6. Departments of Pediatrics and
7. Medicine, University of Minnesota Medical School, Minneapolis, Minnesota, USA
8. Department of Pediatrics, University of Iowa, Iowa City, Iowa, USA
9. Departments of Surgery (Urology) and Child Health, University of Missouri-Columbia, Columbia, Missouri, USA