Bladder Cancer: Factors Affecting Survival Ambati S. Narayana, Stefan A Loening, Donald J Slymen, David A Culp. Elsevier. Bladder Cancer: Factors Affecting Survival. 1983; 130(1):55-60. 1983 https://researcherprofiles.org/profile/402645430 Ambati S. Narayana, Stefan A Loening, Donald J Slymen, David A Culp