%0 Journal Article %A R D Weir %A E M Backett %T Studies of the epidemiology of peptic ulcer in a rural community: prevalence and natural history of dyspepsia and peptic ulcer. %D 1968 %R 10.1136/gut.9.1.75 %J Gut %P 75-83 %V 9 %N 1 %U https://gut.bmj.com/content/gutjnl/9/1/75.full.pdf