1. Department of Clinical Genetics; GOLD (Genetics of Learning Disability) service; Waratah New South Wales Australia
2. University of New South Wales; Waratah New South Wales Australia
3. School of Paediatrics and Reproductive Health and Robinson Institute; The University of Adelaide; Adelaide South Australia Australia
4. Department of Paediatrics and Child Health; University of Sydney; Sydney New South Wales Australia
5. Department of Biochemistry; The Children's Hospital at Westmead; Sydney New South Wales Australia
6. Department of Endocrinology; Nepean Hospital; Sydney New South Wales Australia
7. Department of Human Molecular Genetics
8. Department of Computational Molecular Biology; Max Planck Institute for Molecular Genetics; Berlin Germany