WITHDRAWN: Gluten- and casein-free diets for autistic spectrum disorder.

Background: It has been suggested that peptides from gluten and casein may have a role in the origins of autism and that the physiology and psychology of autism might be explained by excessive opioid activity linked to these peptides. Research has reported abnormal levels of peptides in the urine and cerebrospinal fluid of people with autism.

Objectives: To determine the efficacy of gluten and/or casein free diets as an intervention to improve behaviour, cognitive and social functioning in individuals with autism.

A prospective study of adverse drug reactions to antiepileptic drugs in children.

Objectives: To prospectively determine the nature and rate of adverse drug reactions (ADRs) in children on antiepileptic drugs (AEDs) and to prospectively evaluate the effect of AEDs on behaviour.

Setting: A single centre prospective observational study.

Participants: Children (<18 years old) receiving one or more AEDs for epilepsy, at each clinically determined follow-up visit.