. 2007 Jul 26;2:33. doi: 10.1186/1750-1172-2-33
Copyright © 2007 Levitt and Peña; licensee BioMed Central Ltd.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 7.
Persistent cloaca.