Dawid Pieper

TL;DR: Overlaps must be reported in well-conducted overviews, and this can comprehensively be accomplished using the CCA method.

TL;DR: Most reviews tend to support the presence of a surgeon volume-outcome relationship, most clear-cut in colorectal cancer, bariatric surgery, and breast cancer where reviews of high quality show large effects.

TL;DR: An evidence-based, joint global consensus guideline approach to the management of Desmoid tumor focussing on molecular genetics, indications for an active treatment, and available systemic therapeutic options is presented.

TL;DR: Single screening of the titles and abstracts of studies retrieved in bibliographic searches is not equivalent to double screening, as substantially more studies are missed, however, in the opinion such an approach could still represent an appropriate methodological shortcut in rapid reviews, as long as it is conducted by an experienced reviewer.

TL;DR: Overviews of reviews often lack methodological rigor and methodological standards and reporting guidelines for overviews are needed to improve the quality of this new publication type.