Medical databases allow access to almost every subject, information or knowledge concerning biomedical sciences.

GENERAL PURPOSE: Wide information about biomedical sciences, with no further analysis. Ex. MEDLINE, HEALTHSTAR.

SIGNIFICANT: A selection of relevant areas of biomedical sciences including reviews, thorough analysis and clinical tests. Ex. THE COCHRANE LIBRARY

EVIDENCE-BASED MEDICINE: A selection of references concerning evidence-based medicine. (EBM) Ex. BEST EVIDENCE

SANITARY EVALUATION: Reports and projects about economical sanitary evaluation. Ex. NEED, INAHTA

GUIDELINES: Clinical practical guidelines. Ex. NATIONAL GUIDELINE CLEARINGHOUSE

COMPETITIVE INTELLIGENCE: Information concerning drugs currently on development, from initial tests until delivery. Ex. CURRENT DRUGS, ADIS.