H. N., Pise, et al. “INVESTIGATION OF ANALGESIC ACTIVITY OF XANTHINE OXIDASE INHIBITOR ALLOPURINOL: AN EXPERIMENTAL STUDY”. International Journal of Pharmacy and Pharmaceutical Sciences, vol. 7, no. 3, Mar. 2015, pp. 173-6, https://www.journals.innovareacademics.in/index.php/ijpps/article/view/4449.