A method and apparatus for examining a cell smear for the purpose of detecting the presence of cancerous and precancerous cells located therein. In a preferred embodiment, the method comprises illuminating at least a portion of the cell smear with light of a first wavelength, whereby native fluorescence...http://www.google.com/patents/US6080584?utm_source=gb-gplus-sharePatent US6080584 - Method and apparatus for detecting the presence of cancerous and precancerous cells in a smear using native fluorescence spectroscopy
