Peptic ulcer in twins. A study in personality, heredity, and environment.
D000223:Adaptation, Psychological; D000328:Adult; D000368:Aged; D000428:Alcohol Drinking; D001722:Birth Order; D003192:Compulsive Behavior; D004200:Diseases in Twins; D004381:Duodenal Ulcer / Q000235:genetics; D004777:Environment; D005191:Family Characteristics; D005260:Female; D005826:Genetics, Medical; D006801:Humans; D007046:Hysteria; D007360:Intelligence; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000235:genetics*; D010551:Personality; D012929:Psychological Distance; D011581:Psychological Tests; D011602:Psychophysiologic Disorders; D012907:Smoking; D013276:Stomach Ulcer / Q000235:genetics; D013315:Stress, Psychological