Ahmad, Muhammad Riaz, and Muhammad Khalid Pervaiz. “RISK FACTORS OF URINARY BLADDER CANCER IN PESHAWAR REGION OF KHYBER PUKHTOONKHAWA”. Journal of Ayub Medical College Abbottabad, vol. 22, no. 1, Mar. 2010, pp. 160-3, https://www.jamc.ayubmed.edu.pk/index.php/jamc/article/view/3114.