1. Flinders Health and Medical Research Institute, College of Medicine and Public Health Flinders University Adelaide Australia
2. South Australian Health and Medical Research Institute Adelaide Australia
3. Judith Lumley Center La Trobe University Bundoora, Melbourne Australia
4. PharmacoEpidemiology and Drug Safety Research Group, Department of Pharmacy, and PharmaTox Strategic Initiative, Faculty of Mathematics and Natural Sciences University of Oslo Oslo Norway
5. Department of Child Health and Development Norwegian Institute of Public Health Oslo Norway
6. Department of Mental Disorders The Norwegian Institute of Public Health Oslo Norway
7. Department of Psychology, PROMENTA Research Center University of Oslo Oslo Norway
8. Breastfeeding Service Royal Women’s Hospital Parkville, Melbourne Australia