University of Miami pediatrician Judith L. Schaechter gives an HPV vaccination to a 13-year-old girl last week in Miami. Joe Raedle/Getty Images hide caption

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One takeaway point of the research is that older women should try to reduce the chances of getting a hip fracture, the lead author of the study said. hide caption

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Seniors at the Greenspring Village Retirement Community in Springfield, Va., play Wii bowling. Julie Rovner/NPR hide caption

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Construction at the new Nemours Children's Hospital, at the medical city at Lake Nona, Fla., in late 2010. Joe Burbank/Orlando Sentinel hide caption

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True North Health Center in Falmouth, Maine, accepts "time dollars," in addition to real dollars. Patients perform services in the community, like raking leaves, to earn the currency, and they can spend it for care at True North. hide caption

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