National Medical Journal of China, Volume 94, Issue 18,2014, Pages 1438-1440, doi:10.3760/cma.j.issn.0376-2491.2014.18.022
National Medical Journal of China, Volume 94, Issue 18,2014, Pages 1405-1408, doi:10.3760/cma.j.issn.0376-2491.2014.18.013
National Medical Journal of China, Volume 94, Issue 18,2014, Pages 1361-1364, doi:10.3760/cma.j.issn.0376-2491.2014.18.001
National Medical Journal of China, Volume 94, Issue 18,2014, Pages 1422-1426, doi:10.3760/cma.j.issn.0376-2491.2014.18.018
National Medical Journal of China, Volume 94, Issue 18,2014, Pages 1393-1400, doi:10.3760/cma.j.issn.0376-2491.2014.18.011