Não informado. (1954). The American Journal of Gastroenterology. American College of Gastroenterology.
Chicago-viite (17. p.)Não informado. The American Journal of Gastroenterology. New York: American College of Gastroenterology, 1954.
MLA-viite (8. p.)Não informado. The American Journal of Gastroenterology. American College of Gastroenterology, 1954.
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