Classification of Intraoperative Complications: Reply.

Dell-Kuster S Basel Institute for Clinical Epidemiology and Biostatistics, University Hospital Basel, Basel, Switzerland.
Clavien PA Department of Surgery, University Hospital Zurich and University of Zurich, Zurich, Switzerland.
Bucher HC Basel Institute for Clinical Epidemiology and Biostatistics, University Hospital Basel, Basel, Switzerland.
Rosenthal R Department of Surgery, University Hospital Basel, Basel, Switzerland. rachel.rosenthal@unibas.ch.