. 2011 Jul 20;1:4. doi: 10.1186/2191-1991-1-4
Copyright ©2011 Antonanzas and Rodriguez-Ibeas; licensee Springer.
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.
The optimal level of the unhealthy attribute.