Thapa, Chitra, Gautam Ratna Bajracharya, Samyukta Acharya, and Aarati Thakur. 2022. “The Usefulness of Perfusion Index Derived from a Pulse Oximeter in Predicting Hypotension Following Spinal Anesthesia for Cesarean Section”. Nepal Medical College Journal 24 (4):289-94. https://doi.org/10.3126/nmcj.v24i4.50579.