TY - JOUR A1 - Kork, F. A1 - Spies, Claudia A1 - Conrad, Tim A1 - Weiss, B. A1 - Roenneberg, T. A1 - Wernecke, K.-D. A1 - Balzer, Felix T1 - Associations of postoperative mortality with the time of day, week and year JF - Anaesthesia Y1 - 2018 ER -