National Medical Journal of China, Volume 98, Issue 23,2018, Pages 1809, doi:10.3760/cma.j.issn.0376-2491.2018.23.001
National Medical Journal of China, Volume 98, Issue 23,2018, Pages 1887-1889, doi:10.3760/cma.j.issn.0376-2491.2018.23.018
National Medical Journal of China, Volume 98, Issue 23,2018, Pages 1859-1862, doi:10.3760/cma.j.issn.0376-2491.2018.23.011
National Medical Journal of China, Volume 98, Issue 23,2018, Pages 1890-1892, doi:10.3760/cma.j.issn.0376-2491.2018.23.019
National Medical Journal of China, Volume 98, Issue 23,2018, Pages 1813-1821, doi:10.3760/cma.j.issn.0376-2491.2018.23.003