Association between changes in cerebral grey matter volume and postoperative cognitive dysfunction in elderly patients: study protocol for a prospective observational cohort study.
Nicolai GoettelPanagiota MistridisManfred BerresJulia ReinhardtChristoph StippichAndreas U MonschLuzius A SteinerPublished in: BMC anesthesiology (2016)
Clinicaltrials.gov NCT02045004 . Registered 22 January 2014. Kofam.ch SNCTP000001751. Registered 21 April 2016 (retrospectively registered).