National Medical Journal of China, Volume 99, Issue 38,2019, Pages 3005-3007, doi:10.3760/cma.j.issn.0376-2491.2019.38.008
National Medical Journal of China, Volume 99, Issue 38,2019, Pages 3014-3018, doi:10.3760/cma.j.issn.0376-2491.2019.38.010
National Medical Journal of China, Volume 99, Issue 38,2019, Pages 3019-3023, doi:10.3760/cma.j.issn.0376-2491.2019.38.011
National Medical Journal of China, Volume 99, Issue 38,2019, Pages 3033-3037, doi:10.3760/cma.j.issn.0376-2491.2019.38.015
National Medical Journal of China, Volume 99, Issue 38,2019, Pages 3024-3026, doi:10.3760/cma.j.issn.0376-2491.2019.38.012