The progressive think tank Center for American Progress concludes that efforts by four states -- Massachusetts, Arkansas, Oregon and Maryland -- to rein in health care costs via delivery system reforms instead of cutting eligibility and benefits offer promising models for other states, though the results are mixed. CAP's analysis found: There is no one-size-fits all solution; federal government involvement is key; a global state health care budget or an annual target spending growth rate shows some promise; coordinated care...