Harshad Mangaldas Mahajan, and Sandipbhai Jivanbhai Patel. “To Compare the Efficacy of Intrathecal 0.75% Heavy Ropivacaine and 0.5% Heavy Bupivacaine for Lower Abdominal and Lower Limb Surgery”. Asian Journal of Medical Sciences, vol. 14, no. 9, Sept. 2023, pp. 58-63, doi:10.3126/ajms.v14i9.53793.