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258 articles were identified to meet initial search criteria. Quality assessment was conducted on 182 articles after exclusion of  ineligible articles. Quality and risk of bias assessment was   \subsection{\textbf{Conclusions:}}  Quality and risk of bias were assessed in half of the systematic reviews and meta-analyses coded, however methods of assessment are determined by authors independently rather than following well known scales such as Jadad and Newcastle-Ottawa Scale.High risk of bias and low quality studies were included in most of these studies.This analysis provides further evidence of the lack of consistency in reporting quality measures for clinical findings in the field of oncology. Differences between assessment of bias and quality reporting could negatively impact the clinical application of findings in oncology journals.\cite{26192602} journals.  \subsection{\textbf{Keywords:}}  bias;meta-analysis;oncology;quality;systematic review  \section{Introduction} 
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