Touil N, Pavlopoulou A, Barbier O, Libouton X, et al. Evaluation of intraoperative ketamine on the prevention of severe rebound pain
upon cessation of peripheral nerve block: a prospective randomised, double-blind,
placebo-controlled study. Br J Anaesth 2022 Feb 23. pii: S0007-0912(22)00005.
PMID: 35219449