Abdollahzadeh, P., S. H. Madani, S. Khazaei, S. Sajadimajd, B. Izadi, and F. Najafi. “Association Between Human Papillomavirus and Transitional Cell Carcinoma of the Bladder”. Urology Journal, vol. 14, no. 6, Nov. 2017, pp. 5047-50, doi:10.22037/uj.v14i6.3748.