National Medical Journal of China, Volume 94, Issue 38,2014, Pages 2973-2976, doi:10.3760/cma.j.issn.0376-2491.2014.38.005
National Medical Journal of China, Volume 94, Issue 38,2014, Pages 3008-3010, doi:10.3760/cma.j.issn.0376-2491.2014.38.013
National Medical Journal of China, Volume 94, Issue 38,2014, Pages 2988-2991, doi:10.3760/cma.j.issn.0376-2491.2014.38.008
National Medical Journal of China, Volume 94, Issue 38,2014, Pages 2992-2995, doi:10.3760/cma.j.issn.0376-2491.2014.38.009
National Medical Journal of China, Volume 94, Issue 38,2014, Pages 3033-3035, doi:10.3760/cma.j.issn.0376-2491.2014.38.020