She is the Head of the Division of Developmental and Behavioural Paediatrics. Her main clinical duties are at the Child and Parent Resource Institute (CPRI). At CPRI she does consultation and assessments of children and adolescents with developmental delays and/or mental health problems as part of a multidisciplinary team. She has a particular interest in Tourette Syndrome, Fetal Alcohol Spectrum Disorder, assessment of children with social deficits and global health. Dr. Mitchell was part of the London Region Fetal Alcohol Spectrum Disorder Diagnostic Clinic since its inception in 2012.