National Medical Journal of China, Volume 98, Issue 44,2018, Pages 3627-3629, doi:10.3760/cma.j.issn.0376-2491.2018.44.018
National Medical Journal of China, Volume 98, Issue 44,2018, Pages 3584-3586, doi:10.3760/cma.j.issn.0376-2491.2018.44.007
National Medical Journal of China, Volume 98, Issue 44,2018, Pages 3613-3615, doi:10.3760/cma.j.issn.0376-2491.2018.44.013
National Medical Journal of China, Volume 98, Issue 44,2018, Pages 3630-3632, doi:10.3760/cma.j.issn.0376-2491.2018.44.019
National Medical Journal of China, Volume 98, Issue 44,2018, Pages 3623-3626, doi:10.3760/cma.j.issn.0376-2491.2018.44.017