National Medical Journal of China, Volume 98, Issue 41,2018, Pages 3336-3338, doi:10.3760/cma.j.issn.0376-2491.2018.41.009
National Medical Journal of China, Volume 98, Issue 41,2018, Pages 3381-3384, doi:10.3760/cma.j.issn.0376-2491.2018.41.020
National Medical Journal of China, Volume 98, Issue 41,2018, Pages 3374-3376, doi:10.3760/cma.j.issn.0376-2491.2018.41.017
National Medical Journal of China, Volume 98, Issue 41,2018, Pages 3345-3349, doi:10.3760/cma.j.issn.0376-2491.2018.41.011
National Medical Journal of China, Volume 98, Issue 41,2018, Pages 3324-3327, doi:10.3760/cma.j.issn.0376-2491.2018.41.006