National Medical Journal of China, Volume 95, Issue 15,2015, Pages 1122-1126, doi:10.3760/cma.j.issn.0376-2491.2015.15.002
National Medical Journal of China, Volume 95, Issue 15,2015, Pages 1199-1200, doi:10.3760/cma.j.issn.0376-2491.2015.15.021
National Medical Journal of China, Volume 95, Issue 15,2015, Pages 1162-1167, doi:10.3760/cma.j.issn.0376-2491.2015.15.011
National Medical Journal of China, Volume 95, Issue 15,2015, Pages 1131-1134, doi:10.3760/cma.j.issn.0376-2491.2015.15.004
National Medical Journal of China, Volume 95, Issue 15,2015, Pages 1189-1192, doi:10.3760/cma.j.issn.0376-2491.2015.15.018