Limit category | Specified limit | Implementation |
---|---|---|
Languages | English, Japanese, Chinese, Russian, French, Spanish, Portuguese, Ukrainian, Lithuanian | Manual sifting |
Publication type | None | n/a |
Date of publication | 1st January 1990–26th Sept 2015 | Manual sifting |
Study design | Consecutive Case Series, Case Control Studies, Cohort Studies, Randomised Controlled Trials, Systematic Reviews and Meta-analyses | Manual sifting |
Other limits | None | n/a |