Segal, Isidor; Unterhalter, Beryl; Rosenbush, Heidi - In: Social Science & Medicine 23 (1986) 4, pp. 417-422
It has been postulated that urbanisation is an important factor in the genesis of duodenal ulcer. This study of 100 duodenal ulcer patients, and 100 hospital controls, matched according to sex, age, education and occupation, and an additional 50 unmatched endoscopically negative controls,...