Psychiatric diagnosis in preschool children.
McClellan
Jon M
JM
Speltz
Matthew L
ML
D001289:Attention Deficit Disorder with Hyperactivity / Q000453:epidemiology; D002675:Child, Preschool; D015897:Comorbidity; D006801:Humans; D001523:Mental Disorders / Q000175:diagnosis / Q000453:epidemiology*; D011569:Psychiatric Status Rating Scales; D015203:Reproducibility of Results