National Medical Journal of China, Volume 99, Issue 37,2019, Pages 2951-2954, doi:10.3760/cma.j.issn.0376-2491.2019.37.018
National Medical Journal of China, Volume 99, Issue 37,2019, Pages 2897-2902, doi:10.3760/cma.j.issn.0376-2491.2019.37.005
National Medical Journal of China, Volume 99, Issue 37,2019, Pages 2881-2884, doi:10.3760/cma.j.issn.0376-2491.2019.37.001
National Medical Journal of China, Volume 99, Issue 37,2019, Pages 2916-2920, doi:10.3760/cma.j.issn.0376-2491.2019.37.009
National Medical Journal of China, Volume 99, Issue 37,2019, Pages 2958-2960, doi:10.3760/cma.j.issn.0376-2491.2019.37.020