Methylphenidate for core and ADHD-like symptoms in children aged 6 to 18 years with autism spectrum disorders (ASDs)

To determine the efficacy and safety of methylphenidate for 1) features of ADHD such as hyperactivity, impulsivity, and concentration, and 2) the core features of ASD (social, communication, and behavioural problems) in children aged six to 18 years with ASD.

This is a protocol.