Bessman J D, Johnson R K, Goldin A
Urology. 1975 Aug;6(2):187-93. doi: 10.1016/0090-4295(75)90709-8.
Normal rat bladder is moderately permeable to intravesically instilled thiotepa, but impermeable to instilled cytosine arabinoside, 5-fluorouracil, or adriamycin. Permeability to thiotepa increased as neoplastic changes of the bladder epithelium were induced with a carcinogenic diet.