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To evaluate the accuracy of the Omron HBP-1300, an automatic device for blood pressure (BP) measurement, compared with the standard auscultatory method with a mercury sphygmomanometer, we conducted a large population-based survey. From 2012 to 2015, a total of 500,000 participants were randomly selected from the 262 urban cities and rural counties in China, of them BP was measured three times simultaneously...
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