1. Department of Environmental Medicine; Institute of Public Health; University of Southern Denmark; Odense; Denmark
2. Odense Child Cohort; Hans Christian Andersen Children's Hospital; Odense; Denmark
3. Institute of Clinical Research; University of Southern Denmark; Odense; Denmark
4. Department of Obstetrics and Gynaecology; Odense University Hospital; Odense; Denmark
5. Hans Christian Andersen Children's Hospital; Odense University Hospital; Odense; Denmark