This low oral bioavailability shows that in the monkey model, pregnancy does not alter the substantial metabolism to inactive conjugates that occurs in the GI tract and liver after oral ingestion and limits internal exposures to BPA and when compared with injections.

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The effects of aspirin were independent of age, and sex, and were also seen with a low-dose, slow-release formulation of aspirin designed to inhibit platelets but to have little systemic bioavailability.

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