National Medical Journal of China, Volume 96, Issue 10,2016, Pages 781-786, doi:10.3760/cma.j.issn.0376-2491.2016.10.007
National Medical Journal of China, Volume 96, Issue 10,2016, Pages 761-766, doi:10.3760/cma.j.issn.0376-2491.2016.10.003
National Medical Journal of China, Volume 96, Issue 10,2016, Pages 776-780, doi:10.3760/cma.j.issn.0376-2491.2016.10.006
National Medical Journal of China, Volume 96, Issue 10,2016, Pages 796-800, doi:10.3760/cma.j.issn.0376-2491.2016.10.010
National Medical Journal of China, Volume 96, Issue 10,2016, Pages 801-806, doi:10.3760/cma.j.issn.0376-2491.2016.10.011