title: Does simultaneous cholecystectomy increase the risk of colonic surgery?
mesh_terms: D000368:Aged; D002763:Cholecystectomy / Q000009:adverse effects / Q000401:mortality; D003082:Colectomy / Q000009:adverse effects / Q000401:mortality; D003108:Colonic Diseases / Q000401:mortality / Q000601:surgery*; D005260:Female; D005705:Gallbladder Diseases / Q000401:mortality / Q000601:surgery*; D006801:Humans; D008297:Male; D011897:Random Allocation; D012189:Retrospective Studies; D012306:Risk; D013997:Time Factors