Third-person singular simple present indicative form of level.(verb)
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Use "levels" in a sentence
"An honest headline could have been Fat and protein have no effect on serum ALT levels, HDL-C levels improved as did triglyceride levels."
"Maintains phosphocreatine levels, thus promoting ATP levels*"
"Looking at the expression levels of those six genes alone was enough to distinguish people who became ill from those who did not with about 95 percent accuracy."