RT Journal A1 LAVENSON RS T1 OBservations on a child with a gastric fistula in relation to recent advances in the physiology of gastric digestion JF Archives of Internal Medicine JO Archives of Internal Medicine YR 1909 FD September 1 VO IV IS 3 SP 271 OP 290 DO 10.1001/archinte.1909.00050190080006 UL http://dx.doi.org/10.1001/archinte.1909.00050190080006 AB There is no field of medicine in which more activity has been displayed in recent years than in the physiology of digestion. Processes that had previously been considered of the utmost simplicity have been shown to be complex and intricate. Both secretory and motor functions of the digestive organs have been demonstrated to be remarkably selective and purposive and to be subject to interrelations well beyond our previous conceptions. Many of the newer discoveries have been the result of the activity of Pawlow and his followers, and of the methods devised by them, which permit a much more accurate determination of the functions of the digestive organs than had previously been possible. Most of the facts that have been determined have been the result of animal experimentation; though some observations have been made on suitable human subjects, they have not as yet been so numerous as