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Plasma concentrations of methionine (A, D), homocysteine (B, E), and cysteine (C, F) in response to graded intakes of glycine during midgestation (A, B, C) and late gestation (D, E, F) 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 all data.
