1. Jamshidnejad J, Koehler RE, Narayan D (1978) Double channel pylorus. Am J Roentgenol 130(6):1047–1050
2. Fenwick S, Fenwick W (1900) Ulcer of the Stomach and Duodenum and Its Consequences. London: Churchill, p 72
3. Notkin U (1939) Spontaneous gastroduodenal fistula. Can Med Assoc J 41(2):166–172
4. Christien G, Branthomme JM, Volny L, Deschamps P, Morice A (1971) Pylore double: malformation congenitale. Sem Hop 47(23):1485–1488