National Medical Journal of China, Volume 100, Issue 5,2020, Pages 323,327,344,356,372,377,386,
National Medical Journal of China, Volume 100, Issue 5,2020, Pages 373-377, doi:10.3760/cma.j.issn.0376-2491.2020.05.011
National Medical Journal of China, Volume 100, Issue 5,2020, Pages 357-362, doi:10.3760/cma.j.issn.0376-2491.2020.05.008
National Medical Journal of China, Volume 100, Issue 5,2020, Pages 398-400, doi:10.3760/cma.j.issn.0376-2491.2020.05.018
National Medical Journal of China, Volume 100, Issue 5,2020, Pages 387-390, doi:10.3760/cma.j.issn.0376-2491.2020.05.014