title: The perils of protectionism.
authors.affiliation: Indiana University School of Medicine, Department of Radiology, Indianapolis, IN 46202-5200, USA.
authors.forename: Richard B
authors.initials: RB
authors.lastname: Gunderman
authors.forename: Alexander
authors.initials: A
authors.lastname: Tawadros
mesh_terms: D003132:Commerce / Q000331:legislation & jurisprudence*; D004465:Economic Competition / Q000191:economics* / Q000331:legislation & jurisprudence*; D011871:Radiology / Q000191:economics* / Q000331:legislation & jurisprudence*; D012017:Referral and Consultation / Q000191:economics* / Q000331:legislation & jurisprudence*; D014481:United States