Koonin Eugene V, Moss Bernard
National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD 20892, USA.
Proc Natl Acad Sci U S A. 2010 Feb 23;107(8):3283-4. doi: 10.1073/pnas.0915061107. Epub 2010 Feb 18.