National Medical Journal of China, Volume 95, Issue 30,2015, Pages 2494-2496, doi:10.3760/cma.j.issn.0376-2491.2015.30.023
National Medical Journal of China, Volume 95, Issue 30,2015, Pages 2489-2490, doi:10.3760/cma.j.issn.0376-2491.2015.30.021
National Medical Journal of China, Volume 95, Issue 30,2015, Pages 2437-2441, doi:10.3760/cma.j.issn.0376-2491.2015.30.007
National Medical Journal of China, Volume 95, Issue 30,2015, Pages 2451-2454, doi:10.3760/cma.j.issn.0376-2491.2015.30.010
National Medical Journal of China, Volume 95, Issue 30,2015, Pages 2442-2446, doi:10.3760/cma.j.issn.0376-2491.2015.30.008