1. A review of spontaneous ulcer disease in domestic animals: chickens, cattle, horses, and swine;Pfeiffer;Acta Physiol Hung,1992
2. Functional stenosis of the sigmoid curve of the duodenum in cattle;van der Velden;Vet Rec,1983
3. Clinical signs, diagnosis, and treatment of duodenal ileus in cattle;Braun;Schweiz Arch Tierheilkd,1993
4. Reflux of bile acids from the duodenum into the rumen of cows with a reduced intestinal passage;Braun;Vet Rec,1989
5. Gravel obstruction of the abomasums or duodenum of two cows;Cebra;J Am Vet Med Assoc,1996