1. Quarterly update on wrong-site surgery: areas to focus attention Author(s): Clarke, John R., author Publication: [Harrisburg, Pa.] : Pennsylvania Patient Safety Authority, [2013] Subject(s): Medical Errors -- statistics & numerical dataSurgical Procedures, OperativeAnesthesiaForecastingMedical Errors -- trendsNerve BlockPreoperative CareSpine -- surgeryHumansPennsylvaniaUnited States