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Qualitätsbewertung systematischer Reviews: Interrater-Relia..:

Lorenz, R ; Matthias, K ; Pieper, D...
Shea BJ, et al. AMSTAR 2: a critical appraisal tool for systematic reviews that include randomised or non-randomised studies of healthcare interventions, or both. BMJ. 2017 Sep 21;358:j4008..  , 2018