Awan, Sarmud Latif, et al. “COMPARISON BETWEEN INJECTION SCLEROTHERAPY AND RUBBER BAND LIGATION FOR FIRST AND SECOND DEGREE HAEMORRHOIDS”. Pakistan Journal of Physiology, vol. 13, no. 2, June 2017, pp. 15-18, https://pjp.pps.org.pk/index.php/PJP/article/view/43.