title: Letters.
mesh_terms: D000368:Aged; D050110:Bariatric Surgery / Q000009:adverse effects / Q000379:methods / Q000706:statistics & numerical data; D005260:Female; D017219:Gastric Outlet Obstruction / Q000175:diagnosis / Q000209:etiology / Q000601:surgery; D005773:Gastroscopy / Q000379:methods*; D006801:Humans; D007494:Ireland / Q000453:epidemiology; D020380:Needs Assessment; D009765:Obesity / Q000453:epidemiology / Q000601:surgery; D011183:Postoperative Complications / Q000175:diagnosis / Q000601:surgery