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Efficacy of oral compared with intramuscular vitamin B-12 supplementation after Roux-en-Y gastric bypass: a randomized controlled trial - ScienceDirect https://www.tiktok.com/api/img/?itemId=7639585246521888031&location=0&aid=1988 size:.5 Grams ferron In the rat diclofenac study, oral doses also prevented liver damage and the brain injury linked to that liver damage
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