What is the difference between Tertiary, Secondary and Primary Literature?
Tertiary Literature: a broad, all encompassing source that gives general information. Tertiary references provide information that is collected and evaluated from multiple types of references and are organized in a useful way.
Examples include: Lexicomp, Micromedex, Facts and Comparisons.
Secondary Literature: Allow for efficient access to primary literature. Indexing or abstract services that direct you to primary literature. However, secondary literature does not interpret the primary literature.
Examples include: PubMed, Medline, EMBASE, International Pharmaceutical Abstracts.
Primary Literature: Introduces new knowledge or enhances existing knowledge on a subject. Data is original.
Examples include: clinical trials, case reports, conference proceedings.