Patient William Wishart, age 4 months, looks on as Dr. Melanie Walker uses a portable computer to enter information from his exam into an electronic medical records system, in North Raleigh, N.C., in November. Chris Seward/MCT /Landov hide caption

toggle caption Chris Seward/MCT /Landov

Electronic medical records can have drawbacks, too. hide caption

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Transporting reams of athletes' medical information has become a major burden for the U.S. Olympic Committee, and is one reason it's switching to electronic medical records. Andrew Villegas/KHN/ hide caption

toggle caption Andrew Villegas/KHN/

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