Learning as a developmental task.
D000342:Affective Symptoms / Q000150:complications; D001010:Anxiety, Separation / Q000150:complications; D002648:Child; D002653:Child Behavior Disorders / Q000150:complications; D002657:Child Development; D002665:Child Psychiatry; D002675:Child, Preschool; D006801:Humans; D007858:Learning; D007859:Learning Disabilities / Q000209:etiology; D008297:Male; D009034:Mother-Child Relations; D010553:Personality Development