title: Manometric study of the lower oesophageal sphincter in adult Nigerians in relation to the rarity of hiatus hernia and symptomatic gastro-oesophageal reflux.
mesh_terms: D000328:Adult; D000349:Africa; D004943:Esophagogastric Junction / Q000503:physiopathology*; D005260:Female; D005764:Gastroesophageal Reflux / Q000453:epidemiology* / Q000503:physiopathology; D006548:Hernia, Diaphragmatic / Q000453:epidemiology*; D006551:Hernia, Hiatal / Q000453:epidemiology* / Q000503:physiopathology; D006801:Humans; D008297:Male; D008365:Manometry; D044465:White People