title: Adapting to duty-hour limits--four years on.
authors.affiliation: Johns Hopkins School of Medicine, Baltimore, USA.
authors.forename: Harry H
authors.initials: HH
authors.lastname: Yoon
mesh_terms: D000068:Accreditation; D006801:Humans; D007388:Internal Medicine / Q000193:education; D007396:Internship and Residency / Q000458:organization & administration*; D010343:Patient Admission; D010557:Personnel Administration, Hospital; D010561:Personnel Staffing and Scheduling / Q000592:standards; D014481:United States; D016526:Workload / Q000592:standards*