National Medical Journal of China, Volume 97, Issue 21,2017, Pages 1615-1623, doi:10.3760/cma.j.issn.0376-2491.2017.21.006
National Medical Journal of China, Volume 97, Issue 21,2017, Pages 1650-1654, doi:10.3760/cma.j.issn.0376-2491.2017.21.012
National Medical Journal of China, Volume 97, Issue 21,2017, Pages 1677-1680, doi:10.3760/cma.j.issn.0376-2491.2017.21.018
National Medical Journal of China, Volume 97, Issue 21,2017, Pages 1601, doi:10.3760/cma.j.issn.0376-2491.2017.21.001