Brian P. Hudson, Joel Quispe, Samuel Lara-González, Younggyu Kim, Helen M. Berman, Eddy Arnold, Richard H. Ebright, Catherine L. Lawson
Proc Natl Acad Sci U S A. 2009 Nov 24; 106(47): 19830–19835. Published online 2009 Nov 10. doi: 10.1073/pnas.0908782106