BIOSIS citation index

Includes cited references to primary journal literature on biological research, medical research findings, and discoveries of new organisms. It covers original research reports and reviews in botany, zoology, and microbiology, and related fields such as biomedical, agriculture, pharmacology, and ecology, and interdisciplinary fields such as medicine, biochemistry, biophysics, bioengineering, and biotechnology. Available with up to 18 million records to 1926.