EXPLAINS. WE’VE COLLECTED BLOOD SAMPLES, URINE SAMPLES, TOENAIL SAMPLES, AND WE’VE COLLECTED MANY OF THESE SAMPLES REPEATEDLY OVER TIME. THE NUMBER CATALOGED HERE IS IN THE MILLIONS SINCE 1976, MORE ...
For decades, researchers have been collecting samples from hundreds of thousands of women and tracking their health. The work has deepened our basic understanding of human health, but now the entire ...
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