KRT14 and peritoneal carcinoma: To increase specificity for the urothelium and avoid primary peritoneal carcinoma or muscle wall sarcomas upon plasmid leakage, epithelium-specific promoters were generated and used (KRT14-Cre + SB13, Cdh1-Cre + SB13), resulting in 6 genetic groups for 2 genders (Fig. 1, Supp.