6.8  References

Bennett 2003  
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De Angelis 2004  
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Eisinga 2007  
Eisinga A, Siegfried N, Clarke M. The sensitivity and precision of search terms in Phases I, II and III of the Cochrane Highly Sensitive Search Strategy for identifying reports of randomized trials in MEDLINE in a specific area of health care - HIV/AIDS prevention and treatment interventions.
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Eysenbach 2001  
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Glanville 2006  
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Glanville 2008  
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Hetherington 1989  
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Hopewell 2007a  
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Hopewell 2007b  
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Horton 1997  
Horton R. Medical editors trial amnesty. The Lancet 1997; 350: 756.

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Lefebvre 2001  
Lefebvre C, Clarke M. Identifying randomised trials. In: Egger M, Davey Smith G, Altman DG (editors). Systematic Reviews in Health Care: Meta-analysis in Context (2nd edition). London (UK): BMJ Publication Group, 2001.

Lefebvre 2008  
Lefebvre C, Eisinga A, McDonald S, Paul N. Enhancing access to reports of clinical trials published world-wide - the contribution of EMBASE records to the Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library.
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MacLean 2003  
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McDonald 2002  
McDonald S. Improving access to the international coverage of reports of controlled trials in electronic databases: a search of the Australasian Medical Index. Health Information and Libraries Journal 2002; 19: 14-20.

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Sampson 2006  
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Wilczynski 2007  
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Wong 2006  
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