Chinese Journal of Medical Education, Volume 39, Issue 6,2019, Pages 461-465, doi:10.3760/cma.j.issn.1673-677X.2019.06.010
Chinese Journal of Medical Education, Volume 39, Issue 6,2019, Pages 446-449, doi:10.3760/cma.j.issn.1673-677X.2019.06.007
Chinese Journal of Medical Education, Volume 39, Issue 6,2019, Pages 441-445, doi:10.3760/cma.j.issn.1673-677X.2019.06.006
Chinese Journal of Medical Education, Volume 39, Issue 6,2019, Pages 475-480, doi:10.3760/cma.j.issn.1673-677X.2019.06.013