National Medical Journal of China, Volume 93, Issue 33,2013, Pages 2674-2676, doi:10.3760/cma.j.issn.0376-2491.2013.33.018
National Medical Journal of China, Volume 93, Issue 33,2013, Pages 2654-2658, doi:10.3760/cma.j.issn.0376-2491.2013.33.013
National Medical Journal of China, Volume 93, Issue 33,2013, Pages 2667-2670, doi:10.3760/cma.j.issn.0376-2491.2013.33.016
National Medical Journal of China, Volume 93, Issue 33,2013, Pages 2611-2612, doi:10.3760/cma.j.issn.0376-2491.2013.33.002
National Medical Journal of China, Volume 93, Issue 33,2013, Pages 2680-2683, doi:10.3760/cma.j.issn.0376-2491.2013.33.020