Table 4. Electronic sources searched

Electronic databaseDescription
AMED (Alternative and Allied Medicine Database)
Searched from 1985 to October 1998
This database contains 100,000 references from 400 journals on alternative and complementary medicine going back to 1985.
CINAHL (Cumulative Index to Nursing and Allied Health Literature)
Searched from 1984 to July 1999
This database includes citations from more than 500 biomedical and popular sources, including National League of Nursing and American Nurses Association publications, covers publications from 1982 to the present, and is considered the premier nursing database.
CISCOM (Centralised Information Service for Complementary Medicine)
Searched 1968 to July 1999
This database contains more than 34,000 references and combines data from MEDLINE, AMED, and other specialist European databases.
Cochrane Library (http://www​.cochrane.org)
DARE (Database of Reviews of Effectiveness) (http://www​.york.ac.uk/inst/crd/)
The Cochrane Controlled Trials Registry
Searched Issue 2, 1999
These databases contain references of randomized controlled trials and systematic reviews identified from electronic bibliographic sources and hand-searching of multiple journals and symposia or meeting proceedings.
Dissertation Abstracts
Searched from 1961 to Dec 1998
This library indexes doctoral dissertations and masters' abstracts from more than 1,000 institutions.
EMBASE
Searched from 1988 to July 1999
This database contains biomedical and pharmaceutical citations and is considered the premier biomedical database in Europe.
MEDLINE (PubMed)
Searched from 1966 to July 1999
PubMed searched July 1999 to February 2000
These databases (MEDLINE and PubMed) index almost 4,000 international biomedical journals from 1966 to the present, include references from Index Medicus, International Nursing Index, and Index to Dental Literature, and are considered the premiere biomedical databases in the United States.
MICROMEDEX contains:
DRUGDEX Product Index (drug ingredients)
POISONDEX/IDENTIDEX (toxicology)
DRUG-REAX (interactive drug interactions)
Searched July 1999
This database provides a major source for drug, poison, and acute care information.
NAPRALERT (Natural Products Alert)
Searched 1650 to September 1999
This database contains records from 1650 to the present on natural products, including the pharmacology, biological activity, taxonomic distribution, ethnomedicine, and chemistry of plant, microbial, and animal extracts.
PHYTODOK (German database)
Searched 1995 to July 1999
This database contains 8,800 references from approximately 300 journals worldwide on toxicology, pharmacology, and therapeutic uses for natural compounds and on isolation of natural compounds from plant material.
Science Citation Index
Searched from January 1990 to March 1999
This index covers 4,400 scientific and 1,400 social science journals worldwide, together with selected coverage of related material.

From: 2, Methodology

Cover of Garlic: Effects on Cardiovascular Risks and Disease, Protective Effects Against Cancer, and Clinical Adverse Effects
Garlic: Effects on Cardiovascular Risks and Disease, Protective Effects Against Cancer, and Clinical Adverse Effects.
Evidence Reports/Technology Assessments, No. 20.
Mulrow C, Lawrence V, Ackermann R, et al.

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