title: Cross-level bias and variations in care.
authors.forename: John W
authors.initials: JW
authors.lastname: Finney
authors.forename: Keith
authors.initials: K
authors.lastname: Humphreys
authors.forename: Alex H S
authors.initials: AH
authors.lastname: Harris
mesh_terms: D019317:Evidence-Based Medicine; D019983:Guideline Adherence; D005102:Health Expenditures; D006801:Humans; D010043:Outcome and Process Assessment, Health Care; D011787:Quality of Health Care