National Medical Journal of China, Volume 95, Issue 36,2015, Pages 2919-2923, doi:10.3760/cma.j.issn.0376-2491.2015.36.007
National Medical Journal of China, Volume 95, Issue 36,2015, Pages 2983-2985, doi:10.3760/cma.j.issn.0376-2491.2015.36.021
National Medical Journal of China, Volume 95, Issue 36,2015, Pages 2976-2979, doi:10.3760/cma.j.issn.0376-2491.2015.36.019
National Medical Journal of China, Volume 95, Issue 36,2015, Pages 2969-2975, doi:10.3760/cma.j.issn.0376-2491.2015.36.018
National Medical Journal of China, Volume 95, Issue 36,2015, Pages 2964-2968, doi:10.3760/cma.j.issn.0376-2491.2015.36.017