Chinese Journal of Medical Education, Volume 32, Issue 5,2012, Pages 744-746, doi:10.3760/cma.j.issn.1673-677X.2012.05.036
Chinese Journal of Medical Education, Volume 32, Issue 5,2012, Pages 690-692,737, doi:10.3760/cma.j.issn.1673-677X.2012.05.019
Chinese Journal of Medical Education, Volume 32, Issue 5,2012, Pages 781-783,789, doi:10.3760/cma.j.issn.1673-677X.2012.05.049
Chinese Journal of Medical Education, Volume 32, Issue 5,2012, Pages 728-730, doi:10.3760/cma.j.issn.1673-677X.2012.05.031
Chinese Journal of Medical Education, Volume 32, Issue 5,2012, Pages 725-727, doi:10.3760/cma.j.issn.1673-677X.2012.05.030