title: Editorial Comment.
authors.affiliation: Department of Urology, Sidney Kimmel Cancer Center, Thomas Jefferson University/Thomas Jefferson University Hospital, Philadelphia, Pennsylvania.
authors.forename: Leonard G
authors.initials: LG
authors.lastname: Gomella
mesh_terms: D000622:Aminolevulinic Acid / Q000031:analogs & derivatives; D002295:Carcinoma, Transitional Cell; D003558:Cystoscopy; D006801:Humans; D001749:Urinary Bladder Neoplasms
chemical_list: D000622:Aminolevulinic Acid; C419924:5-aminolevulinic acid hexyl ester