National Medical Journal of China, Volume 98, Issue 26,2018, Pages 2134-2136, doi:10.3760/cma.j.issn.0376-2491.2018.26.017
National Medical Journal of China, Volume 98, Issue 26,2018, Pages 2092-2098, doi:10.3760/cma.j.issn.0376-2491.2018.26.007
National Medical Journal of China, Volume 98, Issue 26,2018, Pages 2115-2119, doi:10.3760/cma.j.issn.0376-2491.2018.26.011
National Medical Journal of China, Volume 98, Issue 26,2018, Pages 2073-2077, doi:10.3760/cma.j.issn.0376-2491.2018.26.003
National Medical Journal of China, Volume 98, Issue 26,2018, Pages 2083-2087, doi:10.3760/cma.j.issn.0376-2491.2018.26.005