title: The classification problem in child and adolescent psychiatry.
mesh_terms: D000293:Adolescent; D002653:Child Behavior Disorders / Q000145:classification; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000145:classification*; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics; D013577:Syndrome