. 2014 Jun 12;3:296. doi: 10.1186/2193-1801-3-296
© Weinhardt et al.; licensee Springer. 2014
This article is published under license to 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 credited.
Figure 1.
SAGE4 Health Project study design and sampling procedure.