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Riegger, Harriet, Alexa Hollinger, Burkhardt Seifert, Katharina Toft, Andrea Blum, Tatjana Zehnder, e Martin Siegemund. "Baden Prevention and Reduction of Incidence of Postoperative Delirium Trial (PRIDe): A Phase IV Multicenter, Randomized, Placebo-controlled, Double-blind Clinical Trial of Ketamine Versus Haloperidol for Prevention of Postoperative Delirium." Trials 2018.

Riegger, Harriet, et al. "Baden Prevention and Reduction of Incidence of Postoperative Delirium Trial (PRIDe): A Phase IV Multicenter, Randomized, Placebo-controlled, Double-blind Clinical Trial of Ketamine Versus Haloperidol for Prevention of Postoperative Delirium." Trials 2018.