Follow-up on a follow-up study: pitfalls and ethical implications.
D000293:Adolescent; D000328:Adult; D002648:Child; D002653:Child Behavior Disorders / Q000628:therapy*; D002675:Child, Preschool; D004995:Ethics, Professional; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D010290:Parents / Q000193:education*