1. Children’s Hospital and Institute of Biomedicine (A.K., M.R., M.T., M.H.), University of Helsinki, 00014 Helsinki, Finland
2. Program for Women’s Health (A.K., M.R., M.T., R.B., M.H., M.A.), University of Helsinki, 00014 Helsinki, Finland
3. Biomedicum Helsinki, and Departments of Obstetrics and Gynecology (L.U.-K., A.L., R.B., M.A.), University of Helsinki, 00014 Helsinki, Finland
4. Pathology (R.B.), University of Helsinki, 00014 Helsinki, Finland
5. Cardiac Growth and Differentiation Unit (M.N.), Clinical Research Institute of Montreal, Montreal, Quebec, Canada H3A 2B4
6. Department of Physiology (N.R.), University of Turku, 20014 Turku, Finland
7. Department of Reproductive Biology (I.H.), Imperial College London, London W12 0NN, United Kingdom
8. Department of Pediatrics (M.H.), Washington University School of Medicine, St. Louis, Missouri 63110