Reader Comments

Post a new comment on this article

Small correction

Posted by JonasJdePaula on 18 Sep 2013 at 00:53 GMT

Dear friends, we noticed a small error in the manuscript. The captions of tables 1 and 2 are exchanged. The staff Plos One is already preparing patches, and soon the PDF will be corrected. Sincerely, Jonas J de Paula and authors.

No competing interests declared.