Allameh, F., H. Qashqai, S. Najafi, and A. Rakhshan. “A Large Perivesical Mass in a Patient With the History of Bladder Cancer; Does It Always Mean a Tumor Extension?”. Case Reports in Clinical Practice, Vol. 1, no. 1, Jan. 2016, pp. 22-24, http://crcp.tums.ac.ir/index.php/crcp/article/view/27.