1. PCA by proxy--an overdose of care Publication: [Harrisburg, Pa.] : Pennsylvania Patient Safety Authority, [2005] Subject(s): Analgesia, Patient-Controlled -- adverse effectsMedication Errors -- prevention & controlProxyAnalgesics, Opioid -- adverse effectsDrug Overdose -- prevention & controlFamilyNursesPatient SafetyHumansPennsylvaniaUnited States