National Medical Journal of China, Volume 97, Issue 11,2017, Pages 804-809, doi:10.3760/cma.j.issn.0376-2491.2017.11.002
National Medical Journal of China, Volume 97, Issue 11,2017, Pages 857-863, doi:10.3760/cma.j.issn.0376-2491.2017.11.013
National Medical Journal of China, Volume 97, Issue 11,2017, Pages 833-837, doi:10.3760/cma.j.issn.0376-2491.2017.11.008
National Medical Journal of China, Volume 97, Issue 11,2017, Pages 874, doi:10.3760/cma.j.issn.0376-2491.2017.11.016
National Medical Journal of China, Volume 97, Issue 11,2017, Pages 810-813, doi:10.3760/cma.j.issn.0376-2491.2017.11.003