National Medical Journal of China, Volume 98, Issue 18,2018, Pages 1446-1451, doi:10.3760/cma.j.issn.0376-2491.2018.18.016
National Medical Journal of China, Volume 98, Issue 18,2018, Pages 1380-1382, doi:10.3760/cma.j.issn.0376-2491.2018.18.002
National Medical Journal of China, Volume 98, Issue 18,2018, Pages 1383-1388, doi:10.3760/cma.j.issn.0376-2491.2018.18.003
National Medical Journal of China, Volume 98, Issue 18,2018, Pages 1394-1396, doi:10.3760/cma.j.issn.0376-2491.2018.18.005
National Medical Journal of China, Volume 98, Issue 18,2018, Pages 1389-1393, doi:10.3760/cma.j.issn.0376-2491.2018.18.004