National Medical Journal of China, Volume 97, Issue 27,2017, Pages 2135-2140, doi:10.3760/cma.j.issn.0376-2491.2017.27.012
National Medical Journal of China, Volume 97, Issue 27,2017, Pages 2141-2144, doi:10.3760/cma.j.issn.0376-2491.2017.27.013
National Medical Journal of China, Volume 97, Issue 27,2017, Pages 2107-2110, doi:10.3760/cma.j.issn.0376-2491.2017.27.006
National Medical Journal of China, Volume 97, Issue 27,2017, Pages 2145-2149, doi:10.3760/cma.j.issn.0376-2491.2017.27.014
National Medical Journal of China, Volume 97, Issue 27,2017, Pages 2158-2160, doi:10.3760/cma.j.issn.0376-2491.2017.27.018