title: As all-products clauses spread, physicians make tough choices.
authors.forename: B
authors.initials: B
authors.lastname: Carlson
mesh_terms: D003284:Contract Services / Q000331:legislation & jurisprudence* / Q000592:standards; D003657:Decision Making; D006279:Health Maintenance Organizations / Q000331:legislation & jurisprudence; D006801:Humans; D007193:Independent Practice Associations / Q000331:legislation & jurisprudence*; D010820:Physicians / Q000331:legislation & jurisprudence*; D014481:United States