Associations Between Impaired Cerebral Blood Flow Autoregulation, Cerebral Oxygenation, and Biomarkers of Brain Injury and Postoperative Cognitive Dysfunction in Elderly Patients After Major Noncardiac Surgery. - Goettel N; Burkhart CS; Rossi A; Cabella BC; Berres M; Monsch AU; Czosnyka M; Steiner LA (Anesthesia and analgesia, 2017)