title: The Veterans Administration Cooperative Study on Gastric Ulcer. 7. Coexistent duodenal ulcer.
mesh_terms: D000328:Adult; D000368:Aged; D044383:Black People; D004381:Duodenal Ulcer / Q000150:complications* / Q000453:epidemiology / Q000473:pathology; D005260:Female; D005745:Gastric Acidity Determination; D006801:Humans; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D013274:Stomach Neoplasms / Q000150:complications; D013276:Stomach Ulcer / Q000150:complications* / Q000453:epidemiology / Q000473:pathology; D014481:United States; D044465:White People; D014945:Wound Healing; D001741:Black or African American