Differences in fluorescence profiles from breast cancer tissues due to changes in relative tryptophan content via energy transfer: tryptophan content correlates with histologic grade and tumor size but not with lymph node metastases.
Sordillo LA, Sordillo PP, Budansky Y, Pu Y, Alfano RR. Differences in fluorescence profiles from breast cancer tissues due to changes in relative tryptophan content via energy transfer: tryptophan content correlates with histologic grade and tumor size but not with lymph node metastases. J Biomed Opt. 2014 Dec; 19(12):125002.