Affiliation: | (1) Department of Anesthesiology, University Hospital of Regensburg, Franz-Josef-Strauss-Allee 11, 93052 Regensburg, Germany;(2) Department of Anesthesiology, Heart Center Bad Krozingen, Südring 15, 79188 Bad Krozingen, Germany;(3) Department of Cardiothoracic and Vascular Surgery, University Hospital of Regensburg, Franz-Josef-Strauss-Allee 11, 93052 Regensburg, Germany |