National Medical Journal of China, Volume 94, Issue 28,2014, Pages 2232-2233, doi:10.3760/cma.j.issn.0376-2491.2014.28.018
National Medical Journal of China, Volume 94, Issue 28,2014, Pages 2165-2168, doi:10.3760/cma.j.issn.0376-2491.2014.28.002
National Medical Journal of China, Volume 94, Issue 28,2014, Pages 2204-2206, doi:10.3760/cma.j.issn.0376-2491.2014.28.011
National Medical Journal of China, Volume 94, Issue 28,2014, Pages 2216-2221, doi:10.3760/cma.j.issn.0376-2491.2014.28.014
National Medical Journal of China, Volume 94, Issue 28,2014, Pages 2212-2215, doi:10.3760/cma.j.issn.0376-2491.2014.28.013