CHAMP: a comparative study approach.
D000208:Acute Disease; D002648:Child; D003133:Commission on Professional and Hospital Activities; D006776:Hospitals, Pediatric / Q000458:organization & administration*; D006782:Hospitals, Special / Q000458:organization & administration*; D006801:Humans; D007255:Information Services; D007938:Leukemia / Q000175:diagnosis / Q000628:therapy; D008485:Medical Audit; D011785:Quality Assurance, Health Care; D014481:United States