National Medical Journal of China, Volume 97, Issue 13,2017, Pages 991-995, doi:10.3760/cma.j.issn.0376-2491.2017.13.006
National Medical Journal of China, Volume 97, Issue 13,2017, Pages 982-985, doi:10.3760/cma.j.issn.0376-2491.2017.13.004
National Medical Journal of China, Volume 97, Issue 13,2017, Pages 961-963, doi:10.3760/cma.j.issn.0376-2491.2017.13.001
National Medical Journal of China, Volume 97, Issue 13,2017, Pages 1006-1010, doi:10.3760/cma.j.issn.0376-2491.2017.13.009
National Medical Journal of China, Volume 97, Issue 13,2017, Pages 1001-1005, doi:10.3760/cma.j.issn.0376-2491.2017.13.008