title: Massachusetts battle goes to heart of tax-exempt question.
authors.forename: M
authors.initials: M
authors.lastname: Carlson
mesh_terms: D002017:Budgets / Q000331:legislation & jurisprudence; D019983:Guideline Adherence; D006279:Health Maintenance Organizations / Q000191:economics* / Q000331:legislation & jurisprudence; D008404:Massachusetts; D019464:Tax Exemption / Q000331:legislation & jurisprudence*