The physiologic significance of the secretion of endogenous insulin into the portal circulation. I. Comparison of the effects of glucagon-free insulin adminstered via the portal vein and via a peripheral vein on the magnitude of hypoglycemia and per

The physiologic significance of the secretion of endogenous insulin into the portal circulation. I. Comparison of the effects of glucagon-free insulin adminstered via the portal vein and via a peripheral vein on the magnitude of hypoglycemia and per