Reader Comments (4)
Post a new comment on this article
-
1 Response29 Jul 2011
15:11 GMT
Most RecentMedia Coverage of This Article Posted by PLOS_ONE_Group on 11 Jul 2011 at 10:51 GMT -
0 Responses11 Jun 2011
22:50 GMT
Most Recentvery innovative approach to an historic quandary Posted by st099 on 11 Jun 2011 at 22:50 GMT -
0 Responses09 Jun 2011
10:34 GMT
Most RecentResults completely invalid Posted by salzberg on 09 Jun 2011 at 10:34 GMT