National Medical Journal of China, Volume 95, Issue 10,2015, Pages 781-784, doi:10.3760/cma.j.issn.0376-2491.2015.10.014
National Medical Journal of China, Volume 95, Issue 10,2015, Pages 776-780, doi:10.3760/cma.j.issn.0376-2491.2015.10.013
National Medical Journal of China, Volume 95, Issue 10,2015, Pages 736-740, doi:10.3760/cma.j.issn.0376-2491.2015.10.004
National Medical Journal of China, Volume 95, Issue 10,2015, Pages 753-756, doi:10.3760/cma.j.issn.0376-2491.2015.10.008
National Medical Journal of China, Volume 95, Issue 10,2015, Pages 731-735, doi:10.3760/cma.j.issn.0376-2491.2015.10.003