A method of ablating the growth of or eradicating neoplasms in mammals byPP(a) contacting the cells of the neoplasm with an effective amount of a combination of photoactive chromophores, and PP (b) exposing the chromophore-contacted neoplastic cells to light with a wavelength or wavelengths predetermined to be absorbed by the chromophores, the light also having a predetermined power density and energy level.
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