Clinical practice in the management of postoperative delirium by Chinese anesthesiologists: a cross-sectional survey designed by the European Society of Anaesthesiology oleh Simon Delp, Wei Mei, Claudia D. Spies, Bruno Neuner, César Aldecoa, Gabriella Bettelli, Federico Bilotta, Robert D. Sanders, Sylvia Kramer, Bjoern Weiss