A clinical approach in the problem of the backward child.
D002648:Child; D002653:Child Behavior Disorders / Q000175:diagnosis*; D002675:Child, Preschool; D005190:Family; D006311:Hearing Disorders; D006801:Humans; D007360:Intelligence; D007806:Language Disorders; D009048:Motor Skills; D012924:Social Conditions; D014786:Vision Disorders