Jares-Erijman, E. A., & Jovin, T. M. (2006). Imaging molecular interactions in living cells by FRET microscopy. Current Opinion in Chemical Biology, 10(5), 409-416. Retrieved from http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6VRX-4KST3VT-1-H&_cdi=6246&_user=38661&_orig=browse&_coverDate=10%2F31%2F2006&_sk=999899994&view=c&wchp=dGLbVtz-zSkWz&md5=1a3f3a2129d2fd8f9ef42830c4471cef&ie=/sdarticle.pdf.