北京大学医学部教育教学研究课题2020YB11;北京大学人民医院研究与发展基金RDE 2020-12,RDE2021-03;Education and Teaching Research Project of Peking University Health Science Center2020YB11;Project Supported by Peking University People's Hospital Research and Development FundsRDE2020-12, RDE2021-03