title: State health insurance exchanges: progress and challenges.
authors: The Commonwealth Fund.
authors: Sara R
authors: SR
authors: Collins
authors: Tracy
authors: T
authors: Garber
mesh_terms: D062265:Health Insurance Exchanges / Q000458:organization & administration; D006801:Humans; D058991:Patient Protection and Affordable Care Act / Q000331:legislation & jurisprudence / Q000458:organization & administration*; D014481:United States; D019472:Universal Health Insurance / Q000458:organization & administration