Researchers find that more than 40 percent of surgical complications happen after patients leave the hospital. iStockphoto.com hide caption

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Nebraska Gov. Dave Heineman announced Thursday that his state will choose the federal health insurance exchange program. Nati Harnik/AP hide caption

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Problems with a computer system could delay work on health insurance exchanges. iStockphoto.com hide caption

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New Jersey Gov. Chris Christie listens to a question in Trenton, N.J., Tuesday. He has refused to tip his hand on whether New Jersey will set up a federally mandated health insurance exchange or let the federal government handle the chores. Mel Evans/AP hide caption

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Two new studies and a proposed class-action lawsuit settlement all have the potential to change dollar signs as lawmakers address the impending fiscal cliff. iStockphoto.com hide caption

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Tennessee Gov. Bill Haslam said last week the state could design its own health insurance exchange required under President Obama's health care law. But resistance in the Republican-controlled General Assembly may cause the state to hand that power off to the federal government. Mark Humphrey/AP hide caption

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A medical assistant checks a patient's blood pressure at a community health center in Aurora, Colo. Metro Community Provider Network has received some 6,000 more Medicaid eligible patients since the health overhaul law was passed in 2010. John Moore/Getty Images hide caption

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Republican presidential candidate Mitt Romney speaks about the Supreme Court ruling on health care in Washington on June 28. Charles Dharapak/AP hide caption

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President Obama and Republican presidential candidate Mitt Romney first debated Medicare on Oct. 3. Saul Loeb/AFP/Getty Images hide caption

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Denver Health has a network of clinics to keep track of patients discharged from its hospital. Denver Health hide caption

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Oklahoma Attorney General Scott Pruitt, seen at a news conference in early 2011 before he took office, promised to file a lawsuit soon after he was sworn in. He did. Sue Ogrocki/AP hide caption

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