Handsearching versus electronic searching to identify reports of randomized trials.
BACKGROUND: Systematic reviewers need to decide how best to reduce bias in identifying studies for their review. Even when journals are indexed in electronic databases, it can still be difficult to identify all relevant studies reported in these journals. Over 1700 journals have been or are being handsearched within The Cochrane Collaboration to identify reports of controlled trials in order to help address these problems. OBJECTIVES: To review systematically empirical studies, which have co...Expand abstract
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