title: Use of diagnostic tests and therapeutic procedures in a changing health care environment.
authors.forename: A M
authors.initials: AM
authors.lastname: Epstein
mesh_terms: D003955:Diagnostic Tests, Routine / Q000706:statistics & numerical data*; D006296:Health Services / Q000706:statistics & numerical data*; D010818:Practice Patterns, Physicians'; D013812:Therapeutics / Q000706:statistics & numerical data*; D014600:Utilization Review