National Medical Journal of China, Volume 93, Issue 28,2013, Pages 2179-2182, doi:10.3760/cma.j.issn.0376-2491.2013.28.002
National Medical Journal of China, Volume 93, Issue 28,2013, Pages 2215-2216, doi:10.3760/cma.j.issn.0376-2491.2013.28.011
National Medical Journal of China, Volume 93, Issue 28,2013, Pages 2183-2185, doi:10.3760/cma.j.issn.0376-2491.2013.28.003
National Medical Journal of China, Volume 93, Issue 28,2013, Pages 2230-2234, doi:10.3760/cma.j.issn.0376-2491.2013.28.015
National Medical Journal of China, Volume 93, Issue 28,2013, Pages 2200-2204, doi:10.3760/cma.j.issn.0376-2491.2013.28.007