National Medical Journal of China, Volume 94, Issue 42,2014, Pages 3314-3318, doi:10.3760/cma.j.issn.0376-2491.2014.42.008
National Medical Journal of China, Volume 94, Issue 42,2014, Pages 3349-3351, doi:10.3760/cma.j.issn.0376-2491.2014.42.016
National Medical Journal of China, Volume 94, Issue 42,2014, Pages 3298-3303, doi:10.3760/cma.j.issn.0376-2491.2014.42.005
National Medical Journal of China, Volume 94, Issue 42,2014, Pages 3281-3283, doi:10.3760/cma.j.issn.0376-2491.2014.42.001
National Medical Journal of China, Volume 94, Issue 42,2014, Pages 3352-3353, doi:10.3760/cma.j.issn.0376-2491.2014.42.017