title: Randomized clinical trials: do they provide the optimal method for research on emergency medical services for children?
authors.affiliation: Department of Pediatrics, Children's National Medical Center and George Washington University School of Medicine and Health Services, DC 20010, USA. jjoseph@cnmc.org
authors.forename: Jill G
authors.initials: JG
authors.lastname: Joseph
authors.forename: James M
authors.initials: JM
authors.lastname: Chamberlin
mesh_terms: D002648:Child; D004632:Emergency Medical Services; D019317:Evidence-Based Medicine; D006302:Health Services Research / Q000379:methods*; D006801:Humans; D010372:Pediatrics; D016032:Randomized Controlled Trials as Topic / Q000592:standards; D015203:Reproducibility of Results; D012107:Research Design