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Science 335 , 15031506 (2012)

[ref] Vitamin B6 as P5P: The active form of vitamin B6, called P-5-P, is an essential cofactor in converting glutamate to GABA

Cell viability is generally reduced by freeze-thawing in any cell type

Katri Peuhkuri, Nora Sihvola, Riitta Korpela, Diet promotes sleep duration and quality, Nutrition Research, Volume 32, Issue 5, 2012, Pages 309-319, ISSN 0271-5317, ( Mayer G, Krger M, Meier-Ewert K
