National Medical Journal of China, Volume 95, Issue 7,2015, Pages 507-510, doi:10.3760/cma.j.issn.0376–2491.2015.07.007
National Medical Journal of China, Volume 95, Issue 7,2015, Pages 511-514, doi:10.3760/cma.j.issn.0376–2491.2015.07.008
National Medical Journal of China, Volume 95, Issue 7,2015, Pages 506,510,514,518,522,536,540,546,552,560,
National Medical Journal of China, Volume 95, Issue 7,2015, Pages 544-546, doi:10.3760/cma.j.issn.0376–2491.2015.07.017
National Medical Journal of China, Volume 95, Issue 7,2015, Pages 496-500, doi:10.3760/cma.j.issn.0376–2491.2015.07.005