National Medical Journal of China, Volume 97, Issue 12,2017, Pages 940-943, doi:10.3760/cma.j.issn.0376-2491.2017.12.013
National Medical Journal of China, Volume 97, Issue 12,2017, Pages 915-919, doi:10.3760/cma.j.issn.0376-2491.2017.12.008
National Medical Journal of China, Volume 97, Issue 12,2017, Pages 947-949, doi:10.3760/cma.j.issn.0376-2491.2017.12.016
National Medical Journal of China, Volume 97, Issue 12,2017, Pages 954-957, doi:10.3760/cma.j.issn.0376-2491.2017.12.018
National Medical Journal of China, Volume 97, Issue 12,2017, Pages 925-928, doi:10.3760/cma.j.issn.0376-2491.2017.12.010