National Medical Journal of China, Volume 96, Issue 29,2016, Pages 2321-2326, doi:10.3760/cma.j.issn.0376-2491.2016.29.008
National Medical Journal of China, Volume 96, Issue 29,2016, Pages 2360-2364, doi:10.3760/cma.j.issn.0376-2491.2016.29.016
National Medical Journal of China, Volume 96, Issue 29,2016, Pages 2347-2351, doi:10.3760/cma.j.issn.0376-2491.2016.29.013
National Medical Journal of China, Volume 96, Issue 29,2016, Pages 2327-2331, doi:10.3760/cma.j.issn.0376-2491.2016.29.009