"(Hand searching) involves a manual page-by-page examination of the entire contents of a journal issue or conference proceedings to identify all eligible reports of trials." The Cochrane Handbook
The purpose of hand searching is to find articles relevant to your research question that were missed during database indexing. This methodical process can include a:
Hand searching is widely necessary (particularly for systematic reviews) because they:
Prior to hand searching, your research team should consider the following questions: