1. Behavioural & Brain Sciences Unit; Institute of Child Health; University College London; London UK
2. Division of Adolescence Medicine; Boston's Children Hospital; Harvard Medical School; Boston MA USA
3. Department of Mathematics & Statistics; Amherst College; Amherst MA USA
4. Department of Neuroscience; Neuropsychiatric Research Institute; University of North Dakota; Fargo ND USA
5. Eating Disorder Unit; Institute of Psychiatry; King's College London; London UK
6. Department of Epidemiology and Biostatistics; School of Public Health; Imperial College London; London UK
7. Mid Sweden University; Department of Psychology; Campus Östersund; Östersund Sweden
8. Institute of Health Sciences; University of Oulu; Oulu Finland
9. Biocenter Oulu; University of Oulu; Oulu Finland
10. Unit of Primary Care; Oulu University Hospital, OYS; Oulu Finland
11. Department of Children and Young People and Families; National Institute for Health and Welfare; Oulu Finland