National Medical Journal of China, Volume 99, Issue 31,2019, Pages 2466-2467, doi:10.3760/cma.j.issn.0376-2491.2019.31.013
National Medical Journal of China, Volume 99, Issue 31,2019, Pages 2409-2422, doi:10.3760/cma.j.issn.0376-2491.2019.31.003
National Medical Journal of China, Volume 99, Issue 31,2019, Pages 2469-2470, doi:10.3760/cma.j.issn.0376-2491.2019.0.015
National Medical Journal of China, Volume 99, Issue 31,2019, Pages 2445-2449, doi:10.3760/cma.j.issn.0376-2491.2019.31.008
National Medical Journal of China, Volume 99, Issue 31,2019, Pages 2478-2480, doi:10.3760/cma.j.issn.0376-2491.2019.31.018