National Medical Journal of China, Volume 94, Issue 34,2014, Pages 2720, doi:10.3760/cma.j.issn.0376-2491.2014.34.021
National Medical Journal of China, Volume 94, Issue 34,2014, Pages 2704-2707, doi:10.3760/cma.j.issn.0376-2491.2014.34.016
National Medical Journal of China, Volume 94, Issue 34,2014, Pages 2687-2689, doi:10.3760/cma.j.issn.0376-2491.2014.34.012
National Medical Journal of China, Volume 94, Issue 34,2014, Pages 2716-2717, doi:10.3760/cma.j.issn.0376-2491.2014.34.019
National Medical Journal of China, Volume 94, Issue 34,2014, Pages 2684-2686, doi:10.3760/cma.j.issn.0376-2491.2014.34.011