Hence the US government and insurance organizations carried on series of micro-innovations and macro-reforms, such as managed care and DRG, aiming at extending coverage and reducing expenditure.

• 因此，扩大医保的覆盖率和遏制费用飞涨成为医改主攻方向，美国政府和保险组织进行了一系列诸如管理保健和按病种付费等宏、微观的尝试和改革。