National Medical Journal of China, Volume 96, Issue 9,2016, Pages 724-726, doi:10.3760/cma.j.issn.0376-2491.2016.09.013
National Medical Journal of China, Volume 96, Issue 9,2016, Pages 712-715, doi:10.3760/cma.j.issn.0376-2491.2016.09.010
National Medical Journal of China, Volume 96, Issue 9,2016, Pages 681-684, doi:10.3760/cma.j.issn.0376-2491.2016.09.003
National Medical Journal of China, Volume 96, Issue 9,2016, Pages 731-735, doi:10.3760/cma.j.issn.0376-2491.2016.09.015
National Medical Journal of China, Volume 96, Issue 9,2016, Pages 707-711, doi:10.3760/cma.j.issn.0376-2491.2016.09.009