Using parents as contingency managers.
D000328:Adult; D001362:Avoidance Learning; D001521:Behavior Therapy; D002648:Child; D002653:Child Behavior Disorders / Q000628:therapy*; D005108:Extinction, Psychological; D005260:Female; D005518:Food Preferences; D006801:Humans; D008297:Male; D010287:Parent-Child Relations; D010290:Parents