Maribel Ramos, 13, has both sickle cell disease and an abnormality of blood vessels called moyamoya. Both put her at risk of stroke, and, together, they add up to a 95 percent chance of a major stroke. Richard Knox/NPR hide caption

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To reduce errors by doctors in training, medical educators have capped how long they can work. But enforcing the limits can be a challenge. iStockphoto hide caption

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Electronic medical records can have drawbacks, too. hide caption

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Who's there? A radiologist studies digital X-rays in a viewing room at what is now called the Walter Reed National Military Medical Center in Bethesda, Md. Seth Rossman/U.S. Navy hide caption

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New research suggests that doctors who communicate online with their patients may not see a drop in office visits. hide caption

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Workers in the Georgia secretary of state's office have fallen behind on licensing applications for nurses. Jim Burress/WABE hide caption

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Barbara Fleming is evacuated from Bellevue Hospital by Victor Rivera in the aftermath of Superstorm Sandy in New York on Oct. 31. Carlo Allegri/Reuters/Landov 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 makes his case about Medicare during a briefing in South Carolina in August. Evan Vucci/AP hide caption

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From left: Frank Wild, Ernest Shackleton, Dr. Eric Marshall and Jameson Adams head back to base camp after getting within 97 miles of the South Pole — closer than anyone had gotten before them — in January 1909. /Getty Images hide caption

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Fire department personnel, police officers and paramedics at the scene of a fatal collision on Highway 401 in Mississauga, Ontario, in July 2011. Stacey Newman/ hide caption

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Dr. Vanessa Kerry talks with her father, Sen. John Kerry, before he delivers a speech on health care in Boston. Chitose Suzuki/AP hide caption

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