title: Limiting resident duty hours in the US: new directives.
authors.forename: E S
authors.initials: ES
authors.lastname: Sills
authors.forename: A P H
authors.initials: AP
authors.lastname: Walsh
mesh_terms: D033161:Government Regulation; D006801:Humans; D007396:Internship and Residency / Q000331:legislation & jurisprudence* / Q000706:statistics & numerical data; D007494:Ireland; D010561:Personnel Staffing and Scheduling / Q000331:legislation & jurisprudence* / Q000706:statistics & numerical data; D014481:United States