title: An epidemiologic study of the relationships of peptic ulcer disease in 50-54 year old, urban males with physical, health and smoking factors.
mesh_terms: D000367:Age Factors; D001008:Anxiety Disorders; D001794:Blood Pressure; D003604:Czechoslovakia; D004381:Duodenal Ulcer / Q000453:epidemiology; D004812:Epidemiologic Methods; D006306:Health Surveys; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000453:epidemiology*; D012737:Sex Factors; D012907:Smoking / Q000453:epidemiology; D012923:Social Class; D013276:Stomach Ulcer / Q000453:epidemiology; D013312:Stress, Physiological; D013315:Stress, Psychological; D014505:Urban Population