National Medical Journal of China, Volume 97, Issue 19,2017, Pages 1479-1483, doi:10.3760/cma.j.issn.0376-2491.2017.19.011
National Medical Journal of China, Volume 97, Issue 19,2017, Pages 1505-1509, doi:10.3760/cma.j.issn.0376-2491.2017.19.016
National Medical Journal of China, Volume 97, Issue 19,2017, Pages 1502-1504, doi:10.3760/cma.j.issn.0376-2491.2017.19.015
National Medical Journal of China, Volume 97, Issue 19,2017, Pages 1510-1514, doi:10.3760/cma.j.issn.0376-2491.2017.19.017
National Medical Journal of China, Volume 97, Issue 19,2017, Pages 1469-1473, doi:10.3760/cma.j.issn.0376-2491.2017.19.009