1. Dunedin Multidisciplinary Health and Development Unit; Department of Psychology; University of Otago; Otago New Zealand
2. Christchurch Health and Development Study; Department of Psychological Medicine; University of Otago; Otago New Zealand
3. Hospital Trust and Department of Dermatology; Oslo University Hospital and Institute of Clinical Medicine; University of Oslo; Dunedin New Zealand
4. Social, Genetic and Developmental Psychiatry Centre; Institute of Psychiatry; Kings College London; London U.K
5. Pacific Division; Health Sciences; University of Otago; Otago New Zealand
6. Centre of Methods and Policy Application in the Social Sciences; University of Auckland; Auckland New Zealand