National Medical Journal of China, Volume 93, Issue 23,2013, Pages 1833-1835, doi:10.3760/cma.j.issn.0376-2491.2013.23.017
National Medical Journal of China, Volume 93, Issue 23,2013, Pages 1841-1844, doi:10.3760/cma.j.issn.0376-2491.2013.23.020
National Medical Journal of China, Volume 93, Issue 23,2013, Pages 1856, doi:10.3760/cma.j.issn.0376-2491.2013.23.024
National Medical Journal of China, Volume 93, Issue 23,2013, Pages 1819-1821, doi:10.3760/cma.j.issn.0376-2491.2013.23.013
National Medical Journal of China, Volume 93, Issue 23,2013, Pages 1780-1783, doi:10.3760/cma.j.issn.0376-2491.2013.23.004