National Medical Journal of China, Volume 94, Issue 37,2014, Pages 2929-2933, doi:10.3760/cma.j.issn.0376-2491.2014.37.011
National Medical Journal of China, Volume 94, Issue 37,2014, Pages 2951-2953, doi:10.3760/cma.j.issn.0376-2491.2014.37.017
National Medical Journal of China, Volume 94, Issue 37,2014, Pages 2902-2906, doi:10.3760/cma.j.issn.0376-2491.2014.37.006
National Medical Journal of China, Volume 94, Issue 37,2014, Pages 2884-2885, doi:10.3760/cma.j.issn.0376-2491.2014.37.002
National Medical Journal of China, Volume 94, Issue 37,2014, Pages 2907-2913, doi:10.3760/cma.j.issn.0376-2491.2014.37.007