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1. Toxins and antitoxins

nlm:nlmuid-101499316-bk

3. Regulations for the sale, barter, or exchange of any virus, therapeutic serum, toxin, antitoxin or analogous product or arsphenamine or its derivatives (or any other trivalent organic arsenic compound) in the District of Columbia or in interstate traffic or in export or import traffic

nlm:nlmuid-101392636-bk