title: [How long do surgeons work a week?].
authors.affiliation: Faculty of Economics, Gakushuin University, Tokyo, Japan.
authors.forename: Hisao
authors.initials: H
authors.lastname: Endo
mesh_terms: D013502:General Surgery; D007564:Japan; D013995:Time; D016526:Workload / Q000706:statistics & numerical data*; D017132:Workplace