Incidence of gastric and duodenal ulcer in the Royal Air Force in 1955.
D001699:Biometry; D004381:Duodenal Ulcer; D006801:Humans; D015994:Incidence; D008887:Military Medicine; D008889:Military Personnel; D010437:Peptic Ulcer / Q000706:statistics & numerical data*
MILITARY MEDICINE; PEPTIC ULCER/statistics