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- TOXLINE covers toxicology, chemicals, pharmaceuticals and antidotes.
- ProQuest site
- National Institutes of Health site lets you to add chemical synonyms and CAS numbers. Includes PubMed citations and can limit searches limits by TOXLINE components.
- PubMed indexes citations from MEDLINE, PreMEDLINE, and other journals in the field of medicine and life sciences, and links to NCBI's integrated molecular biology databases including nucleotide sequences, protein sequences, 3-D protein structure data, population study data sets, and assemblies of complete genomes in an integrated system.
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