A method and apparatus for detecting tissue abnormality, particularly precancerous cervical tissue, through fluorescence or Raman spectroscopy, or a combination of fluorescence and Raman spectroscopy. In vivo fluorescence measurements were followed by in vitro NIR Raman measurements on human cervical...http://www.google.com/patents/US6095982?utm_source=gb-gplus-sharePatent US6095982 - Spectroscopic method and apparatus for optically detecting abnormal mammalian epithelial tissue
