@phdthesis{oai:showa.repo.nii.ac.jp:00003635,
 author = {的場, 匡亮},
 month = {2021-03-16, 2021-03-16, 2021-03-16},
 note = {2020年度},
 school = {昭和大学},
 title = {Seven-day services in surgery and the “weekend effect” at a Japanese teaching hospital: a retrospective cohort study},
 year = {}
}