|Up a level|
Hallett, V. and Ronald, Angelica and Colvert, E. and Ames, C. and Woodhouse, E. and Lietz, S. and Garnett, T. and Gillan, N. and Rijsdijk, F. and Scahill, L. and Bolton, P. and Happé, F. (2013) Exploring anxiety symptoms in a large-scale twin study of children with autism spectrum disorders, their co-twins and controls. Journal of Child Psychology and Psychiatry 54 (11), pp. 1176-1185. ISSN 0021-9630.