Anshuman Shukla, Sumita Kumari, Vinita Singh, Satyajeet Verma, & Sujeet Rai. (2020). Comparison of Hypobaric Bupivacaine, With and Without Fentanyl for Patients Undergoing Surgeries around Hip: A Randomized Double Blind Study from North India. Academia Anesthesiologica International, 5(1), 52-56. https://doi.org/10.21276/aan.2020.5.1.10