National Medical Journal of China, Volume 93, Issue 1,2013, Pages 11-14, doi:10.3760/cma.j.issn.0376-2491.2013.01.005
National Medical Journal of China, Volume 93, Issue 1,2013, Pages 44-47, doi:10.3760/cma.j.issn.0376-2491.2013.01.014
National Medical Journal of China, Volume 93, Issue 1,2013, Pages 58-60, doi:10.3760/cma.j.issn.0376-2491.2013.01.018
National Medical Journal of China, Volume 93, Issue 1,2013, Pages 48-52, doi:10.3760/cma.j.issn.0376-2491.2013.01.015
National Medical Journal of China, Volume 93, Issue 1,2013, Pages 41-43, doi:10.3760/cma.j.issn.0376-2491.2013.01.013