title: Subgroups of peptic ulcer patients.
mesh_terms: D000328:Adult; D000368:Aged; D002908:Chronic Disease; D003858:Dependency, Psychological; D003863:Depression / Q000150:complications; D004291:Dominance-Subordination; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009769:Object Attachment; D010437:Peptic Ulcer / Q000150:complications / Q000209:etiology*; D011602:Psychophysiologic Disorders; D012036:Refugees; D012649:Self Concept; D012803:Sick Role; D012923:Social Class; D012937:Social Mobility