National Medical Journal of China, Volume 95, Issue 9,2015, Pages 716-718, doi:10.3760/cma.j.issn.0376-2491.2015.09.021
National Medical Journal of China, Volume 95, Issue 9,2015, Pages 672-675, doi:10.3760/cma.j.issn.0376-2491.2015.09.009
National Medical Journal of China, Volume 95, Issue 9,2015, Pages 681-684, doi:10.3760/cma.j.issn.0376-2491.2015.09.011
National Medical Journal of China, Volume 95, Issue 9,2015, Pages 709-711, doi:10.3760/cma.j.issn.0376-2491.2015.09.019
National Medical Journal of China, Volume 95, Issue 9,2015, Pages 712-715, doi:10.3760/cma.j.issn.0376-2491.2015.09.020