title: PCA--not as effective but still a valuable method.
authors.forename: M
authors.initials: M
authors.lastname: Rosen
mesh_terms: D015360:Analgesia, Epidural / Q000379:methods*; D016362:Analgesia, Obstetrical / Q000379:methods*; D016058:Analgesia, Patient-Controlled / Q000379:methods*; D005260:Female; D006801:Humans