DOI:
10.1055/s-00000161
The Journal of Knee Surgery
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References
Meerpohl JJ, Langer G, Perleth M, Gartlehner G, Kaminski-Hartenthaler A, Schünemann H.
GRADE guidelines: 4. Rating the quality of evidence - limitations of clinical trials (risk of bias) [in German].
Z Evid Fortbild Qual Gesundhwes 2012;
106 (06) 457-469
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