National Medical Journal of China, Volume 98, Issue 9,2018, Pages 706-707, doi:10.3760/cma.j.issn.0376-2491.2018.09.018
National Medical Journal of China, Volume 98, Issue 9,2018, Pages 643-644, doi:10.3760/cma.j.issn.0376-2491.2018.09.002
National Medical Journal of China, Volume 98, Issue 9,2018, Pages 710-711, doi:10.3760/cma.j.issn.0376-2491.2018.09.020
National Medical Journal of China, Volume 98, Issue 9,2018, Pages 653-657, doi:10.3760/cma.j.issn.0376-2491.2018.09.006
National Medical Journal of China, Volume 98, Issue 9,2018, Pages 641-642, doi:10.3760/cma.j.issn.0376-2491.2018.09.001