P21 gene, Granulocyte Macrophage Colony Stimulating Factor, Gelatinases and Carcinoembryonic Antigen Levels In Bilharzial bladder cancer. Research Authors Meki AM, Gaafar AA, Mustafa KA, Zedan A; Research Department Department of Medical Oncology Research Journal Arab J. of labora. Medice.,21,2000. Research Member Ashraf Zeidan Abdalla Ahmed Research Rank 1 Research Year 2000