Involvement of a prepaid health plan in prospective studies on tonsillectomy and adenoidectomy.
D000233:Adenoidectomy / Q000401:mortality; D000293:Adolescent; D000402:Airway Obstruction / Q000601:surgery; D001064:Appendicitis / Q000401:mortality; D002648:Child; D002675:Child, Preschool; D003638:Deafness / Q000601:surgery; D003710:Demography; D006279:Health Maintenance Organizations; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007348:Insurance, Health; D009922:Oregon; D010033:Otitis Media / Q000601:surgery; D011446:Prospective Studies; D012008:Recurrence; D014068:Tonsillectomy / Q000401:mortality; D014069:Tonsillitis / Q000601:surgery; D014432:Tympanic Membrane / Q000601:surgery