||The sources of information may include the
- Text-books in libraries.
- Index Medicus, which identify journal articles by subject, author
- Computer-based literature searches such as MEDLINE.
- Bibliographies, such as those found at the end of books, articles
and theses, or prepared as separate documents.
- Statistics collected at national, provincial and/or departmental
- Opinions and beliefs of key informants (e.g. health managers and