Allam, M.A.R.A.K. (2017) “Endoscopic Balloon Dilatation versus Sphincterotomy in Cases of Calcular Obstructive Jaundice during Endoscopic Retrograde Cholangio Pancreatography”, Journal of medical and pharmaceutical sciences, 1(4), pp. 67–57. doi:10.26389/AJSRP.E011117.