National Medical Journal of China, Volume 95, Issue 20,2015, Pages 1625-1627, doi:10.3760/cma.j.issn.0376-2491.2015.20.019
National Medical Journal of China, Volume 95, Issue 20,2015, Pages 1599-1601, doi:10.3760/cma.j.issn.0376-2491.2015.20.012
National Medical Journal of China, Volume 95, Issue 20,2015, Pages 1609-1611, doi:10.3760/cma.j.issn.0376-2491.2015.20.015
National Medical Journal of China, Volume 95, Issue 20,2015, Pages 1558-1562, doi:10.3760/cma.j.issn.0376-2491.2015.20.003
National Medical Journal of China, Volume 95, Issue 20,2015, Pages 1615-1618, doi:10.3760/cma.j.issn.0376-2491.2015.20.017