National Medical Journal of China, , Issue 23,2014, Pages 1839-1840, doi:10.3760/cma.j.issn.0376-2491.2014.23.022
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National Medical Journal of China, , Issue 23,2014, Pages 1829-1831, doi:10.3760/cma.j.issn.0376-2491.2014.23.019
National Medical Journal of China, , Issue 23,2014, Pages 1803-1803, doi:10.3760/j.issn.0376-2491.2014.23.019