http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Covers issues from social poisons and substance abuse to natural toxins, from legislation and recommended standards to environmental issues. Major areas of subject coverage include: pharmaceuticals; food, additives, and contaminants; agro-chemicals; cosmetics, toiletries, and household products; industrial chemicals; metals; toxins and other natural substances; social poisons and drug abuse; polycyclic hydrocarbons; nitrosamines and related compounds; radiation and radioactive materials; methodology; legislation and recommended standards.
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