A method of photodynamically diagnosing or treating a contoured surface includes topically applying 5-aminolevulinic acid to the contoured surface and irradiating the contoured surface with substantially uniform intensity visible light from a plurality of light sources generally conforming to the contoured...http://www.google.de/patents/US7723910?utm_source=gb-gplus-sharePatent US7723910 - Method of photodynamically diagnosing or treating a contoured surface
