Abraham Vidaurre, 12, checks his arm after receiving an HPV shot in Corpus Christi, Texas. The vaccine is recommended for 11- and 12-year-old boys and girls. Matthew Busch/The Washington Post/Getty Images hide caption

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Women may have different ways of coping with childhood stresses than men, which may increase their risk of health problems in adulthood. Jutta Klee/Uppercut/Getty Images hide caption

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Maria Fabrizio for NPR

When Pregnant Women Need Medicine, They Encounter A Void

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Even when results from studies involving children are available, they frequently aren't published in medical journals. Cultura RM Exclusive/Getty Images hide caption

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Medical Studies Involving Children Often Go Unpublished

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New drugs like Harvoni effectively cure hepatitis C, but they haven't yet been approved for use in children. Lloyd Fox/Baltimore Sun/TNS via Getty Images hide caption

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Earlier studies have found that children who grow up in houses with a TV on many hours a day learn fewer words than children in households with less TV time. Heleen Sitter/Getty Images hide caption

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New Words With Quieter Background Chatter

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Ten-year-old Matthew Husby gets some low-tech comfort from his father after surgery at Lucile Packard Children's Hospital Stanford in Palo Alto, Calif. Heidi de Marco/Kaiser Health News hide caption

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Doctors Get Creative To Soothe Tech-Savvy Kids Before Surgery

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