. 2013 Sep 5;2013:297268. doi: 10.1155/2013/297268
Copyright © 2013 Anna E. Schierberl Scherr et al.
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 1.
Basic APIM: conceptual model.