National Medical Journal of China, Volume 95, Issue 27,2015, Pages 2183-2185, doi:10.3760/cma.j.issn.0376-2491.2015.27.016
National Medical Journal of China, Volume 95, Issue 27,2015, Pages 2157-2159, doi:10.3760/cma.j.issn.0376-2491.2015.27.009
National Medical Journal of China, Volume 95, Issue 27,2015, Pages 2178-2182, doi:10.3760/cma.j.issn.0376-2491.2015.27.015
National Medical Journal of China, Volume 95, Issue 27,2015, Pages 2219-2223, doi:10.3760/cma.j.issn.0376-2491.2015.27.025
National Medical Journal of China, Volume 95, Issue 27,2015, Pages 2208-2213, doi:10.3760/cma.j.issn.0376-2491.2015.27.023