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Pure BoNT/A absorption from the stomach and small intestine. Pure neurotoxin (1 μg/animal) was injected into the stomach or into the intestine. Neurotoxin introduced into the intestine is represented by the open bar, and neurotoxin introduced into the stomach is represented by the hatched bar. Pure neurotoxin (1 μg/animal): stomach, n = 14; intestine, n = 18. Results are means and SEM.
