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The Usefulness of Perfusion Index Derived from a Pulse Oximeter in Predicting Hypotension following Spinal Anesthesia for Cesarean Section. Nep. Med. Coll. J. [Internet]. 2022 Dec. 23 [cited 2026 Jul. 6];24(4):289-94. Available from: https://nepjol.info/index.php/nmcj/article/view/50579