Retrospective registration of the protocol and analysis plan for a systematic review and meta-analysis of endoscopic duodenal mucosal resurfacing and related duodenal ablation in type 2 diabetes and obesity

Retrospective registration of the protocol, analysis plan and analysis code for a systematic review and meta-analysis of endoscopic duodenal mucosal resurfacing and related duodenal ablation in type 2 diabetes and obesity. This record was created after the review was complete and is labelled retrospective throughout; it is not a preregistration and is not offered as evidence that the analysis plan preceded the results. The full statement is in the registration narrative.