B:
Biological Systems (ORNL) - Draws on programs in comparative and functional genomics, structural biology, and computational biology and bioinformatics [U.S. Department of Energy (DOE), Oak Ridge National Laboratory (ORNL)]

Bioscience and Health - New medical diagnostic tests, improving the quality and cost-effectiveness of health care electronic records, reference materials for laboratory test methods, faster screening of promising vaccines -- these are a few of the many areas where National Institute of Standards and Technology (NIST) research serves the needs of the bioscience and health care community. [U.S. Department of Commerce (DOC), National Institutes of Standards and Technology (NIST)]

D:
Defense Threat Reduction IAC (DTRIAC) - The Defense Threat Reduction Information Analysis Center (DTRIAC) is the key Department of Defense source of information and analysis on nuclear and conventional weapons-related topics. Sponsored by the Defense Threat Reduction Agency, DTRIAC has major reference collections of documents, photographic data, and films and can search, retrieve and perform analyses on DTRA-internal and community-wide nuclear/conventional weapons phenomena, effects and technology matters and related nuclear/conventio [U.S. Department of Defense (DOD)]

L:
LOCATORPlus - Catalog of books, journals, and audiovisuals in the National Library of Medicine collections [U.S. Department of Health and Human Services (HHS), National Inst. of Health (NIH), National Library of Medicine (NLM)]

M:
MEDLINE/PubMed - Database with millions of references, primarily from MEDLINE, to journal articles in life sciences with a concentration on biomedicine [U.S. Department of Health and Human Services (HHS), National Inst. of Health (NIH), National Library of Medicine (NLM), National Center for Biotechnology Information (NCBI)]

U:
Unified Medical Language System (UMLS) - Electronic Knowledge Sources and lexical programs that help health professionals and researchers retrieve and integrate electronic biomedical information from a variety of sources [U.S. Department of Health and Human Services (HHS), National Inst. of Health (NIH), National Library of Medicine (NLM), Lister Hill National Center for Biomedical Communications (LHNCBC)]