title: Paying the extra.
authors.forename: H
authors.initials: H
authors.lastname: Merskey
mesh_terms: D002170:Canada; D003287:Contrast Media / Q000191:economics*; D006801:Humans; D007258:Informed Consent; D009313:National Health Programs; D011056:Political Systems; D013675:Technology, High-Cost / Q000706:statistics & numerical data
chemical_list: D003287:Contrast Media