Gäumann N, Vogel E, Jost L, Sonnenberg A, Müller-Lissner S A, Schmid P, Jenny S, Blum A L
Schweiz Med Wochenschr. 1983 Mar 12;113(10):351-7.
In 3935 patients who underwent upper fiberpanendoscopy in two Zurich hospitals the coincidence of different active peptide lesions has been investigated. There was an association of reflux esophagitis and duodenal ulcer in old age: in patients with reflux esophagitis aged over 60 years, duodenal ulcer was found twice as often as in elderly patients without esophagitis. No association of reflux esophagitis and gastric ulcer or of gastric ulcer and duodenal ulcer was observed.