title: Why physicians order tests.
authors.forename: Deborah
authors.initials: D
authors.lastname: Grady
mesh_terms: D005260:Female; D006300:Health Services Misuse / Q000706:statistics & numerical data*; D006787:Hospitals, Veterans; D006801:Humans; D008297:Male; D055414:Myocardial Perfusion Imaging / Q000706:statistics & numerical data*