2015年山东省高等医学教育研究中心科研规划课题YJKT201525;2017年山东省高校人文社科研究计划资助课题J117ZC42 Higher Medical Education Research Center Research Planning Project of Shandong Province in 2015YJKT201525;University Humanities and Social Sciences Research Program Funded Pro-ject of Shandong Province in 2017J117ZC42