Concepcion Javier J, House Ralph L, Papanikolas John M, Meyer Thomas J
Department of Chemistry, University of North Carolina, Chapel Hill, NC 27599-3290, USA.
Proc Natl Acad Sci U S A. 2012 Sep 25;109(39):15560-4. doi: 10.1073/pnas.1212254109. Epub 2012 Sep 24.