INTUBATION STUDIES OF THE HUMAN SMALL INTESTINE. XXIII. A METHOD OF DETERMINING DIGESTIVE ACTIVITY IN ANY PORTION OF THE GASTRO-INTESTINAL TRACT, WITH SOME MEASUREMENTS OF PROTEIN DIGESTION IN THE STOMACH AND SMALL INTESTINE

J Clin Invest. 1942 Nov;21(6):795-800. doi: 10.1172/JCI101357.
No abstract available