National Medical Journal of China, Volume 93, Issue 40,2013, Pages 3241-3243, doi:10.3760/cma.j.issn.0376-2491.2013.40.020
National Medical Journal of China, Volume 93, Issue 40,2013, Pages 3172-3174, doi:10.3760/cma.j.issn.0376-2491.2013.40.002
National Medical Journal of China, Volume 93, Issue 40,2013, Pages 3189-3192, doi:10.3760/cma.j.issn.0376-2491.2013.40.006
National Medical Journal of China, Volume 93, Issue 40,2013, Pages 3223-3225, doi:10.3760/cma.j.issn.0376-2491.2013.40.014
National Medical Journal of China, Volume 93, Issue 40,2013, Pages 3207-3210, doi:10.3760/cma.j.issn.0376-2491.2013.40.010