Functional brain network and trail making test changes following major surgery and postoperative delirium: a prospective, multicentre, observational cohort study

Fienke L. Ditzel, Simone J.T. van Montfort, Lisette M. Vernooij, Ilse Kant, Ellen Aarts, Claudia Spies, Jeroen Hendrikse, Arjen J. C. Slooter, Edwin van Dellen