. 2013 Oct 21;13:986. doi: 10.1186/1471-2458-13-986
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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 2.
Measles incidence and morbidity in Beijing, 1951–2011.