New insights into the influence of cigarette smoking on urothelial carcinogenesis: smoking-induced gene expression in tumor-free urothelium might discriminate muscle-invasive from nonmuscle-invasive urothelial bladder cancer - Gabriel, Ute; Li, Li; Bolenz, Christian; Steidler, Annette; Kränzlin, Bettina; Saile, Maria; Gretz, Norbert; Michel, Maurice Stephan (Molecular carcinogenesis, 2012)