The Cochrane Database of Systematic Reviews (CDSR) is the leading resource for systematic reviews in health care. The CDSR includes Cochrane Reviews (the systematic reviews) and protocols for Cochrane Reviews as well as editorials. The CDSR also has occasional supplements. The CDSR is updated regularly as Cochrane Reviews are published ‘when ready’ and form monthly issues; see publication schedule.
The Cumulative Index of Nursing and Allied Health Literature is a comprehensive research database providing full text for hundreds of nursing and allied health journals with records dating back to 1937.