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Collagen production requires glycine in a 1:3 ratio with other amino acids in the collagen structure

This question is about the reliability of diagnostic tests for Pernicious Anaemia

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Noopept Noopept (N-phenylacetyl-L-prolylglycine ethyl ester) is a dipeptide nootropic that stimulates the expression of both BDNF and nerve growth factor (NGF) in the rat hippocampus