Hira Shujaat1 , Mehreen Khan2 , Ravi Kumar3 , Muhammad Waseem Abdul Razzak4 , Vijai Kumar5 , Zamir Ahmad6 . “COMPARISON OF OUTCOME OF 0.5% HYPERBARIC BUPIVACAINE WITH 0.5% HYPERBARIC ROPIVACAINE IN SPINAL ANAESTHESIA FOR PERIANAL SURGERIES.: http://doi.org/10.46536/Jpumhs/2023/13.01.392”. Journal of Peoples University of Medical &Amp; Health Sciences Nawabshah. (JPUMHS), vol. 13, no. 1, Mar. 2023, pp. 99-109, http://121.52.155.46/index.php/ojs/article/view/691.