1 Clinic of Anesthesiology/Critical Care Medicine and Pain therapy (M.A.B., P.C), Ludwig-Maximilians-University, Munich, Germany. Klaus.Hofmann-Kiefer@med.uni-muenchen.de.
2 Department of Anesthesiology and Intensive Care Medicine, Kreiskliniken Günzburg-Krumbach, Günzburg, Germany.
3 Institute for Surgical Research, Ludwig-Maximilians-University, Munich, Germany.
4 Clinic of Anesthesiology/Critical Care Medicine and Pain therapy (M.A.B., P.C), Ludwig-Maximilians-University, Munich, Germany.
5 Clinic of Pediatrics, Common Hospital, Augsburg, Germany.
6 Department of Neonatology, Clinic of Gynaecology and Obstetrics, Ludwig-Maximilians-University, Munich, Germany.