Subedi A, Schyns-van den Berg AMJV, Thapa P, Limbu PM, et al. Intrathecal morphine does not prevent chronic postsurgical pain after elective
Caesarean delivery: a randomised controlled trial. Br J Anaesth 2022 Jan 25. pii: S0007-0912(21)00836.
PMID: 35090722