Chinese Journal of Medical Education, Volume 31, Issue 5,2011, Pages 658-661, doi:10.3760/cma.j.issn.1673-677X.2011.05.007
Chinese Journal of Medical Education, Volume 31, Issue 5,2011, Pages 675-676,711, doi:10.3760/cma.j.issn.1673-677X.2011.05.013
Chinese Journal of Medical Education, Volume 31, Issue 5,2011, Pages 662-663, doi:10.3760/cma.j.issn.1673-677X.2011.05.008
Chinese Journal of Medical Education, Volume 31, Issue 5,2011, Pages 706-707,728, doi:10.3760/cma.j.issn.1673-677X.2011.05.025
Chinese Journal of Medical Education, Volume 31, Issue 5,2011, Pages 693-697, doi:10.3760/cma.j.issn.1673-677X.2011.05.021