Hebatullah Abulkhair, Yousria Mohamed Mohamed EL-Gohary, Hesham Radwan Abdel-Aziz, Taiseer Refaat Ibrahim. “Update of Bladder Cancer Classification Using Available Immunohistochemical Markers”. Annals of the Romanian Society for Cell Biology, vol. 25, no. 6, June 2021, pp. 8479-04, https://www.annalsofrscb.ro/index.php/journal/article/view/7051.