National Medical Journal of China, Volume 93, Issue 3,2013, Pages 165-168, doi:10.3760/cma.j.issn.0376-2491.2013.03.003
National Medical Journal of China, Volume 93, Issue 3,2013, Pages 187-190, doi:10.3760/cma.j.issn.0376-2491.2013.03.008
National Medical Journal of China, Volume 93, Issue 3,2013, Pages 163-164, doi:10.3760/cma.j.issn.0376-2491.2013.03.002
National Medical Journal of China, Volume 93, Issue 3,2013, Pages 239-240, doi:10.3760/cma.j.issn.0376-2491.2013.03.027
National Medical Journal of China, Volume 93, Issue 3,2013, Pages 215-217, doi:10.3760/cma.j.issn.0376-2491.2013.03.016