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Cumulative excretion of radioactivity 24 h following oral administration of [14C]choline (160 mg/kg) with or without DMAE pre-treatment (500 mg/kg) in female B6C3F1 mice. Mice in DMAE pre-treatment groups received a single dose of 500 mg/kg DMAE 1 h prior to [14C]choline administration Cumulative percent dose A) excreted in urine, B) excreted as volatile organic compounds (VOCs), C) excreted as expired CO2.
