title: Psychological problems of pre-school children in an inner urban area.
mesh_terms: D002653:Child Behavior Disorders / Q000628:therapy; D002675:Child, Preschool; D002658:Developmental Disabilities / Q000628:therapy; D005260:Female; D006801:Humans; D008131:London; D008297:Male; D001523:Mental Disorders / Q000628:therapy*; D009497:Neurotic Disorders / Q000628:therapy; D011567:Psychiatric Department, Hospital; D012017:Referral and Consultation; D012737:Sex Factors; D012924:Social Conditions; D014505:Urban Population