<prompt> All are components of duodenal switch surgery EXCEPT:Gastro-duodenostomyCholecystectomyDuodeno-ileostomySleeve gastrectomy  <response>: Gastro-duodenostomy is not a component of duodenal switch surgery Components of duodenal switch surgery are: Sleeve gastrectomy Duodeno-ileostomy Jejuno-ileostomy Cholecystectomy Appendectomy 