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If you've been eating dark-colored foods or are taking an iron supplement, bismuth subsalicylate, or activated charcoal, black poop may be a normal side effect, but you can still reach out to a doctor to confirm this
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In 2010, they synthesized a diselenide-linked polyurethane block copolymer, capped with polyethylene glycol (PEG), which served as a nanocarrier [60]
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