National Medical Journal of China, Volume 97, Issue 22,2017, Pages 1740-1744, doi:10.3760/cma.j.issn.0376-2491.2017.22.014
National Medical Journal of China, Volume 97, Issue 22,2017, Pages 1710-1713, doi:10.3760/cma.j.issn.0376-2491.2017.22.007
National Medical Journal of China, Volume 97, Issue 22,2017, Pages 1719-1723, doi:10.3760/cma.j.issn.0376-2491.2017.22.009
National Medical Journal of China, Volume 97, Issue 22,2017, Pages 1681-1682, doi:10.3760/cma.j.issn.0376-2491.2017.22.001