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Oral glutathione has historically lower bioavailability, but oral supplementation in sachet form combined with Vitamin C (which regenerates oxidised glutathione) and NAC (a glutathione precursor) provides a sustained-release approach

doi: 10.1038/nrd4359 207

[DOI] [PMC free article] [PubMed] [Google Scholar] Owen O.E., Kalhan S.C., Hanson R.W

Still, rule-based methods like using regular expressions to match various textual descriptions can result in high precision in coding (yet low recall), and have been used to support human coding to largely improve coding efficiency 30

Ercal N, Treeratphan P, Hammond TC, Matthews RH, Grannemann NH, Spitz DR (1996)