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Table 3 Sources Searched

From: An alternative to the hand searching gold standard: validating methodological search filters using relative recall

Electronic sources searched in at least 10% of reviews N %
MEDLINE 105 100.0
Embase 93 88.6
Cochrane Controlled Trials Register or CENTRAL or review group registry 91 86.7
Science Citation Index or Social Science Citation Index 37 35.2
CINAHL 31 29.5
PsycLit 18 17.1
Cochrane Library (no section specified) 16 15.2
Biosis 12 11.4
Dissertation Abstracts 12 11.4
National Research Register 11 10.5
Non-electronic search techniques (all reported methods)   
Cited references 91 86.7
Experts and/or authors or non-commercial organizations contacted 67 63.8
Contacted industry (pharmaceutical companies, manufacturers) 30 28.6
Hand searching (other than reference lists) 17 16.2
Own files 2 1.9
Print indices other than Index Medicus 2 1.9
Index Medicus 1 1.0
Subject Bibliography 1 1.0