. 2009 May 16;9:81. doi: 10.1186/1472-6963-9-81
Copyright © 2009 Ommen et al; 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 1.
Histogram on residuals with superimposed normal curve.