Evaluation of the usefulness of Internet searches to identify unpublished clinical trials for systematic reviews

Author: Eysenbach Gunther   Tuische Jens   Diepgen Thomas L.  

Publisher: Informa Healthcare

ISSN: 1464-5238

Source: Medical Informatics and the Internet in Medicine, Vol.26, Iss.3, 2001-07, pp. : 203-218

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Abstract