National Medical Journal of China, Volume 99, Issue 40,2019, Pages 3152-3157, doi:10.3760/cma.j.issn.0376-2491.2019.40.006
National Medical Journal of China, Volume 99, Issue 40,2019, Pages 3193-3194, doi:10.3760/cma.j.issn.0376-2491.2019.40.015
National Medical Journal of China, Volume 99, Issue 40,2019, Pages 3126-3131, doi:10.3760/cma.j.issn.0376-2491.2019.40.002
National Medical Journal of China, Volume 99, Issue 40,2019, Pages 3183-3185, doi:10.3760/cma.j.issn.0376-2491.2019.40.012
National Medical Journal of China, Volume 99, Issue 40,2019, Pages 3168-3171, doi:10.3760/cma.j.issn.0376-2491.2019.40.009