1. Growing Up in New Zealand; The University of Auckland; Auckland New Zealand
2. Department of General Practice and Primary Health Care; The University of Auckland; Auckland New Zealand
3. Centre for Longitudinal Research - He Ara ki Mua; The University of Auckland; Auckland New Zealand
4. Department of Paediatrics: Child and Youth Health; The University of Auckland; Auckland New Zealand
5. Starship Children's Hospital; Auckland District Health Board; Auckland New Zealand
6. National Institute of Demographic and Economic Analysis; University of Waikato; Hamilton New Zealand
7. Department of Obstetrics & Gynaecology; University of Auckland; Auckland New Zealand
8. MRC Lifecourse Epidemiology Unit; University of Southampton; Southampton UK
9. School of Physical Education, Sport and Exercise Sciences; University of Otago; Dunedin New Zealand