VASUDEVAN JAGANNATHAN, UMESHKUMAR ATHIRAMAN and MEENA NATHAN CHERIAN (2011) “Spinal Anesthesia Using Low Concentration Hypobaric Bupivacaine For Ano-Rectal Surgery. A Randomized Controlled Trial”, International Journal of Pharma and Bio Sciences, 2(2`), pp. 87–93. Available at: https://ijpbs.net/index.php/journal/article/view/746 (Accessed: 23 July 2026).