Trends in paediatric hospitals.
D002170:Canada; D002648:Child; D002651:Child Advocacy; D002673:Child, Hospitalized; D006757:Hospital Units / Q000458:organization & administration; D006760:Hospitalization; D006776:Hospitals, Pediatric / Q000458:organization & administration / Q000639:trends*; D006782:Hospitals, Special / Q000639:trends*; D006801:Humans; D010988:Play and Playthings; D012574:Schools; D011795:Surveys and Questionnaires; D014789:Visitors to Patients