1. Department of Psychiatry; University of North Carolina; Chapel Hill North Carolina
2. Eating Disorders Program, Child and Adolescent Health Service; Department of Health in Western Australia; Perth Australia
3. School of Paediatrics and Child Health, The University of Western Australia; Perth Australia
4. School of Psychology and Speech Pathology, Curtin University; Perth Australia
5. Department of Biostatistics; St Jude Children's Research Hospital; Memphis Tennessee
6. Institute of Nutrition and Food Safety, Chinese Center for Disease Control and Prevention; Bejing China
7. Department of Nutrition; University of North Carolina; Chapel Hill North Carolina
8. Department of Medical Epidemiology and Biostatistics; Karolinska Institutet; Stockholm Sweden