Citation
BMC PUBLIC HEALTH, 2010, 10 pp. ? - ? (9)
Date
2010-01-26
Rights
2010 Beck 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.
Publisher
BIOMED CENTRAL LTD
