| http://www.w3.org/ns/prov#value | - There is a PDF version for those who do not want to click through six pages to read the whole thing: cells might not sprout gray hair, get achy joints, or forget where they put their car keys, but they do age. ... researchers are just beginning to learn what happens to cells as they grow old, and they are making connections between those changes and cancer, deficiencies in wound healing, and other p
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