. 2011 Jul 1;34(3):459–463. doi: 10.1590/S1415-47572011005000029
Copyright © 2011, Sociedade Brasileira de Genética. Printed in Brazil
License information: This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.