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doi: 10.1007/s11695-014-1376-x

Importantly, due to its ecto-enzymatic activity, CD38 not only regulates intracellular and extracellular NAD homeostasis, but also modulates the availability of extracellular NAD and its metabolites [6, 57]

CVS had previously told WHYY that anyone who wants a shot can still walk into any CVS and get it

We need to ideally identify and tackle the initial cause
