National Medical Journal of China, Volume 97, Issue 18,2017, Pages 1387-1390, doi:10.3760/cma.j.issn.0376-2491.2017.18.007
National Medical Journal of China, Volume 97, Issue 18,2017, Pages 1420-1424, doi:10.3760/cma.j.issn.0376-2491.2017.18.014
National Medical Journal of China, Volume 97, Issue 18,2017, Pages 1391-1395, doi:10.3760/cma.j.issn.0376-2491.2017.18.008
National Medical Journal of China, Volume 97, Issue 18,2017, Pages 1411-1414, doi:10.3760/cma.j.issn.0376-2491.2017.18.012
National Medical Journal of China, Volume 97, Issue 18,2017, Pages 1415-1419, doi:10.3760/cma.j.issn.0376-2491.2017.18.013