Fluorescence photodetection of neoplastic urothelial lesions following intravesical instillation of 5-aminolevulinic acid. - Kriegmair,M.; Baumgartner,R.; Knuechel,R.; Steinbach,P.; Ehsan,A.; Lumper,W.; Hofstädter,F.; Hofstetter,A. (Urology, 1994)