National Medical Journal of China, Volume 99, Issue 32,2019, Pages 2497-2500, doi:10.3760/cma.j.issn.0376-2491.2019.32.004
National Medical Journal of China, Volume 99, Issue 32,2019, Pages 2557-2558, doi:10.3760/cma.j.issn.0376-2491.2019.32.019
National Medical Journal of China, Volume 99, Issue 32,2019, Pages 2485-2488, doi:10.3760/cma.j.issn.0376-2491.2019.32.002
National Medical Journal of China, Volume 99, Issue 32,2019, Pages 2536-2541, doi:10.3760/cma.j.issn.0376-2491.2019.32.014
National Medical Journal of China, Volume 99, Issue 32,2019, Pages 2500-2501, doi:10.3760/cma.j.issn.0376-2491.2019.32.005