title: High-osmolality and low-osmolality contrast agents.
authors.forename: P S
authors.initials: PS
authors.lastname: Parfrey
authors.forename: B J
authors.initials: BJ
authors.lastname: Barrett
mesh_terms: D002170:Canada; D006328:Cardiac Catheterization; D003287:Contrast Media / Q000191:economics*; D017023:Coronary Angiography; D003362:Cost-Benefit Analysis; D006801:Humans; D009994:Osmolar Concentration
chemical_list: D003287:Contrast Media