Table 1.
Databases searched
| Database | Coverage dates |
|---|---|
| Acubriefs.com | 1999 till present |
| Agency for Healthcare Research and Quality (AHRQ) website | Website: no coverage dates given |
| Alt HealthWatch | 1984 to September 2006 |
| AMED | ca. 1980 till present |
| Annual Reviews Online | 1932–1999 |
| Applied Science and Technology Index | 1983 till present |
| ArticleFirst | 1990 till present |
| BIOSIS Previews | 1990 till present |
| China Academic Journals (CAJ) | 1994 till present |
| CINALH | 1982 till present |
| Datadiwan | Unable to determine; no response from database producer |
| DIMDI (German Institute of Medical Documentation and Information) | Federated search of multiple databases – various coverage dates |
| Dissertation Abstracts International | 1861 till present |
| EMBASE.com | 1974 till present + MEDLINE |
| ExtraMED | 1992–2000 |
| Global Health | 1973 till present |
| HOM-INFORM (British Homeopathic Library) | Unable to determine; no response from database producer |
| Index to Chiropractic Literature | 1985 till present |
| JICST–Eplus—Japanese Science & Technology | 1985 till present |
| MANTIS | 1900 till present |
| MedicLatina | 1998 till present |
| Natural Standard | N/A (Periodically updated-monograph) |
| NHS Centre for Reviews and Dissemination | 1994 till present |
| PASCAL | 1973 till present |
| PubMed | 1950 till present |
| ScienceDirect Health & Life Sciences | 1996 till present |
| SPORTDiscus | 1830 till present |