Government Literature Retrieval Systems

The MEDLARS System An astoundingly complete scientific data retrieval system, MEDLARS, is the computerized literature retrieval service of 

MEDLARS Data Bases—For further information on the data files cited and on NLM on-line training programs contact National Library of Medicine, 8600 Rockville Pike, Bethesda, Maryland 20209, Telephone (30D-496-6193. 

Toxicology Data Bank Toxicology Data Bank (TDB) contains chemical, pharmacological, and toxicological information. 

Use of National Library of Medicine s Toxicology Data Bank is highly recommended for the 2,600 substances for which it provides animal and human toxicology data, chemical and physical properties, formulas, laboratory methods, poisoning potential and antidote information. Data for the TDB are extracted from handbooks and textbooks and reviewed by a peer review group of subject specialists. 

RTECS Also available on microfiche and in book form (Registry of Toxic Effects of Chemical Substances List) is an annual compilation of unvalidated toxicity data prepared by the National Institute for Occupational Safety and Health (NIOSH). There is no back file. RTECS contains toxicity data for approximately 40,000 substances. Threshold limit values. 

---