National Medical Journal of China, Volume 97, Issue 30,2017, Pages 2349-2352, doi:10.3760/cma.j.issn.0376-2491.2017.30.007
National Medical Journal of China, Volume 97, Issue 30,2017, Pages 2353-2356, doi:10.3760/cma.j.issn.0376-2491.2017.30.008
National Medical Journal of China, Volume 97, Issue 30,2017, Pages 2362-2365, doi:10.3760/cma.j.issn.0376-2491.2017.30.010
National Medical Journal of China, Volume 97, Issue 30,2017, Pages 2391-2392, doi:10.3760/cma.j.issn.0376-2491.2017.30.016
National Medical Journal of China, Volume 97, Issue 30,2017, Pages 2398-2400, doi:10.3760/cma.j.issn.0376-2491.2017.30.019