These references are considered secondary sources. Their aim is to provide access to the primary literature – journal publications. They include citations and abstracts and links to the full-text. Some examples are:
International index of articles on biomedicine, including the allied health fields, biological and physical sciences, humanities, and information science as they relate to medicine and health care. Includes info from Index Medicus, Index to Dental Literature, and International Nursing. 1946-present.
Interdisciplinary index that provides citations for high impact journals. Useful for forward citation searching. (Does not support Internet Explorer as a browser)