JAMA : the journal of the American Medical Association
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To assess whether the dietary intake of long-chain n-3 polyunsaturated fatty acids from seafood, assessed both directly and indirectly through a biomarker, is associated with a reduced risk of primary cardiac arrest. ⋯ Dietary intake of n-3 polyunsaturated fatty acids from seafood is associated with a reduced risk of primary cardiac arrest.
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To determine more precise and accurate cancer risk estimates for achalasia that could be used to plan surveillance. ⋯ Patients with achalasia are at markedly increased risk of developing esophageal cancer. A substantial number of surveillance examinations might be required to screen for cancers, especially in women. It is not known whether surveillance will result in improved survival.