title: States of frustration. More medical groups step up battle against insurers.
authors.forename: Laura B
authors.initials: LB
authors.lastname: Benko
mesh_terms: D005607:Fraud / Q000331:legislation & jurisprudence*; D007343:Insurance Carriers / Q000331:legislation & jurisprudence*; D007357:Insurance, Physician Services / Q000331:legislation & jurisprudence*; D010820:Physicians / Q000191:economics* / Q000331:legislation & jurisprudence; D014481:United States