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Pre-incisional epidural ropivacaine, sufentanil, clonidine, and (S)+-ketamine does not provide pre-emptive analgesia in patients undergoing major pancreatic surgery ††
Department of Anaesthesiology, University Hospital Hamburg Eppendorf, Hamburg, Germany
Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, Knappschaftskrankenhaus Bochum Langendreer, University Hospital Bochum, In der Schornau 23-25, 44892 Bochum, Germany
Department of Anaesthesiology, University Hospital Hamburg Eppendorf, Hamburg, Germany
Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, Knappschaftskrankenhaus Bochum Langendreer, University Hospital Bochum, In der Schornau 23-25, 44892 Bochum, Germany