Comparison of Intra-Articular Bupivacaine and Neostigmine with Bupivacaine and Fentanyl for Post-Operative Analgesia in Arthroscopic Knee Surgeries - Prachi Singh; Sandeep Kumar Yadav; Sumit Kumar; Manoj Tripathi; Deepak Malviya (Academia Anesthesiologica International, 2020)