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Plasma concentrations of S-adenosylmethionine (SAM) (A, C) and S-adenosylhomocysteine (SAH) (B, D) in response to graded intakes of glycine in healthy pregnant women during midgestation (A, B) and late gestation (C, D) in healthy pregnant women. There were 17 observations in 9 women (mid) or 19 observations in 8 women (late). Linear regression analysis was performed on midgestation data. Biphase linear regression crossover analysis was performed on late gestation data.
