National Medical Journal of China, Volume 97, Issue 9,2017, Pages 714-716, doi:10.3760/cma.j.issn.0376-2491.2017.09.018
National Medical Journal of China, Volume 97, Issue 9,2017, Pages 641-642, doi:10.3760/cma.j.issn.0376-2491.2017.09.001
National Medical Journal of China, Volume 97, Issue 9,2017, Pages 670-674, doi:10.3760/cma.j.issn.0376-2491.2017.09.007
National Medical Journal of China, Volume 97, Issue 9,2017, Pages 691-693, doi:10.3760/cma.j.issn.0376-2491.2017.09.012
National Medical Journal of China, Volume 97, Issue 9,2017, Pages 717-720, doi:10.3760/cma.j.issn.0376-2491.2017.09.019