Varshney, Rohit Kumar, and Najamul Huda. 2019. “A Prospective Randomised Double Blind Study Comparing the Efficacy of Peri-Articular Injection With Bupivacaine and Levobupivacaine for Postoperative Pain Control in Total Knee Arthroplasty”. Anaesthesia, Pain & Intensive Care, January, 315-19. https://apicareonline.com/index.php/APIC/article/view/212.