Border control thwarts particles entering the brain.
Bradley
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D000818:Animals; D001485:Basement Membrane / Q000187:drug effects / Q000378:metabolism*; D001812:Blood-Brain Barrier / Q000187:drug effects*; D001921:Brain / Q000098:blood supply / Q000378:metabolism*; D005290:Ferric Compounds / Q000378:metabolism* / Q000494:pharmacology; D051381:Rats
D005290:Ferric Compounds; C000499:ferric oxide