 8. Current or past diagnosis of pediatric autoimmune neuropsychiatric disorders associated with streptococcus PANDAS. This will be defined by the following criteria: abrupt onset of OCD symptoms often with comorbid tics with a relapsing-remitting symptom course, a temporal association between symptom exacerbations and a Group-A beta-hemolytic streptococcal GAS infection, association with neurological abnormalities during exacerbations adventitious movements, motoric hyperactivity, urinary hesitancy, and prepubertal age of onset. 