Detection of Dysplastic Lesions by Fluorescence in a Model of Colitis in Rats After Previous Photosensitization with 5-Aminolaevulinic Acid - Messmann, H; Kullmann, F; Wild, T; Knüchel-Clarke, R; Rüschoff, J; Gross, V; Schölmerich, J; Holstege, A (Endoscopy, 1998)