Kumkum Gupta, Bhawana Rastogi, Prashant K Gupta, Manoranjan K Bansal, Pavitra Kalra, Sukhreet Kaur. Perfusion Index to Assess Hemodynamic Changes and Analgesia with Premedication of Fentanyl versus Nalbuphineduring General Anesthesia. AAN [Internet]. 2019Dec.15 [cited 2024Apr.20];4(2):255-9. Available from: http://aijournals.com/index.php/aan/article/view/1141