National Medical Journal of China, Volume 94, Issue 1,2014, Pages 10-13, doi:10.3760/cma.j.issn.0376-2491.2014.01.004
National Medical Journal of China, Volume 94, Issue 1,2014, Pages 27-30, doi:10.3760/cma.j.issn.0376-2491.2014.01.009
National Medical Journal of China, Volume 94, Issue 1,2014, Pages 69-70, doi:10.3760/cma.j.issn.0376-2491.2014.01.020
National Medical Journal of China, Volume 94, Issue 1,2014, Pages 62-66, doi:10.3760/cma.j.issn.0376-2491.2014.01.018