Paediatrics 1981: Canadian style.
D000293:Adolescent; D002170:Canada; D002648:Child; D002662:Child Health Services / Q000639:trends*; D006776:Hospitals, Pediatric / Q000639:trends*; D006782:Hospitals, Special / Q000639:trends*; D006801:Humans; D010290:Parents; D010372:Pediatrics / Q000639:trends*