National Medical Journal of China, Volume 97, Issue 6,2017, Pages 471-473, doi:10.3760/cma.j.issn.0376-2491.2017.06.015
National Medical Journal of China, Volume 97, Issue 6,2017, Pages 443-446, doi:10.3760/cma.j.issn.0376-2491.2017.06.009
National Medical Journal of China, Volume 97, Issue 6,2017, Pages 438-442, doi:10.3760/cma.j.issn.0376-2491.2017.06.008
National Medical Journal of China, Volume 97, Issue 6,2017, Pages 478-480, doi:10.3760/cma.j.issn.0376-2491.2017.06.017
National Medical Journal of China, Volume 97, Issue 6,2017, Pages 406-411, doi:10.3760/cma.j.issn.0376-2491.2017.06.002