National Medical Journal of China, Volume 98, Issue 37,2018, Pages 3042-3044, doi:10.3760/cma.j.issn.0376-2491.2018.37.022
National Medical Journal of China, Volume 98, Issue 37,2018, Pages 3009-3013, doi:10.3760/cma.j.issn.0376-2491.2018.37.012
National Medical Journal of China, Volume 98, Issue 37,2018, Pages 3025-3031, doi:10.3760/cma.j.issn.0376-2491.2018.37.016
National Medical Journal of China, Volume 98, Issue 37,2018, Pages 3045-3048, doi:10.3760/cma.j.issn.0376-2491.2018.37.023