"[E]ven with all of its effort, its chairman and chief executive, George C. Halvorson, acknowledges Kaiser has yet to achieve the holy grail of delivering that care at a low enough cost. He says he and other health systems must fundamentally rethink what they do or risk having cost controls imposed on them either by the government or by employers, who are absorbing the bulk of health insurance costs. 'We think the future of health care is going to be rationing or re-engineering,' he said."

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