Article Information
vol. 336 no. 6082 740-743
- Received for publication November 30, 2011
- Accepted for publication March 15, 2012
- .
Author Information
- 1Department of Biological Statistics and Computational Biology, Cornell University, Ithaca, NY 14853, USA.
- 2Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14853, USA.
- ↵*To whom correspondence should be addressed. E-mail: ak735{at}cornell.edu