National Medical Journal of China, Volume 95, Issue 29,2015, Pages 2346-2350, doi:10.3760/cma.j.issn.0376-2491.2015.29.003
National Medical Journal of China, Volume 95, Issue 29,2015, Pages 2351-2354, doi:10.3760/cma.j.issn.0376-2491.2015.29.004
National Medical Journal of China, Volume 95, Issue 29,2015, Pages 2396-2402, doi:10.3760/cma.j.issn.0376-2491.2015.29.015
National Medical Journal of China, Volume 95, Issue 29,2015, Pages 2382-2386, doi:10.3760/cma.j.issn.0376-2491.2015.29.012
National Medical Journal of China, Volume 95, Issue 29,2015, Pages 2387-2392, doi:10.3760/cma.j.issn.0376-2491.2015.29.013