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Study-based registers of randomized controlled trials: Starting a systematic review with data extraction or meta-analysis
Introduction: Despite years of use of study-based registers for storing reports of randomized controlled trials, the methodology used in developing such registers/databases has not been documented. Such registers are ...
Increasing value and reducing waste in data extraction for systematic reviews: Tracking data in data extraction forms
Data extraction is one of the most time-consuming tasks in performing a systematic review. Extraction is often onto some sort of form. Sharing completed forms can be used to check quality and accuracy of extraction or for ...