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Daily low-dose aspirin to prevent stroke, cancer: What are the risks?

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More than 40 percent of Americans over 50 take daily aspirin to prevent heart attack and stroke and new guidelines suggest a daily aspirin regimen can help prevent colorectal cancer. The U.S. Preventive Services Task Force is out with controversial new recommendations and NBC News medical contributor Dr. Natalie Azar explains the potential risks and benefits for TODAY.