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Furthermore, NAD+ itself does not easily cross the cell membrane due to its large and charged structure

10.1186/s12889-023-15749-x 101 PandeA.SharmaS.KhillanV.RastogiA.AroraV.ShasthryS

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Circ Arrhythm Electrophysiol

[DOI] [PMC free article] [PubMed] [Google Scholar] 71.Cornire N et al
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Food Chem Toxicol 73:119126
