Mathes, TimTimMathesKlaßen, PaulinePaulineKlaßenPieper, DawidDawidPieper2021-10-272021-10-272017-11-28https://resolver.sub.uni-goettingen.de/purl?gro-2/92136Our objective was to assess the frequency of data extraction errors and its potential impact on results in systematic reviews. Furthermore, we evaluated the effect of different extraction methods, reviewer characteristics and reviewer training on error rates and results.enjournal_article10.1186/s12874-017-0431-429179685