Also known as BIOSIS Previews, indexes the worldwide literature of research in the biological and biomedical sciences. The database covers the entire field of life sciences including original research reports and reviews in field, laboratory, clinical, experimental, and theoretical work. BIOSIS indexes journals, technical reports, meeting proceedings, United States patents, and books in biology, biomedicine, and related areas. The database indexes literature published from 1926 to the present. Over 500,000 journal articles and other documents from over 6,000 journals and other sources are indexed each year.