1. McClure, C. W.: Functional Activities of the Pancreas and Liver. Medical Authors Pub. Co., N. Y., 1937.
2. Myers, V. C.: Variations in the Enzymatic Activity of Duodenal Contents.Am. J. Dig. Dis., 5, 8, 464–467, 1938.
3. Christiansen, T.: Klinicke Studier Over den Duodenalaft-Sekretion. Levin and Munksgaard, Copenhagen, 1933.
4. Aaron, A. H., Bockus, H. L. and Ivy, A. C.: On Survey of Enzyme Tests as Performed by the Members of the American Gastro-Enterological Association.Trans. Am. Gastro-Enterol. Assn., 37:38, 1934.Am. J. Dig. Dis. and Nutrit., 1:462–466, Sept., 1934.
5. Chiray, Salmon, A. R. and Mercier, A.: Action de la sécretine purifiée sur la sécretion externe du pancréas de l’homme.Bull, et Mém. Soc. des Hop. de Paris, Series 3, 28, 1417, 1926.