National Medical Journal of China, Volume 93, Issue 38,2013, Pages 3040-3043, doi:10.3760/cma.j.issn.0376-2491.2013.38.009
National Medical Journal of China, Volume 93, Issue 38,2013, Pages 3027-3030, doi:10.3760/cma.j.issn.0376-2491.2013.38.006
National Medical Journal of China, Volume 93, Issue 38,2013, Pages 3060-3062, doi:10.3760/cma.j.issn.0376-2491.2013.38.014
National Medical Journal of China, Volume 93, Issue 38,2013, Pages 3057-3059, doi:10.3760/cma.j.issn.0376-2491.2013.38.013
National Medical Journal of China, Volume 93, Issue 38,2013, Pages 3015-3018, doi:10.3760/cma.j.issn.0376-2491.2013.38.003