Journal of Experimental Medicine, 1906, v.8, pp. 193-239
Lydia De Witt ligated the pancreatic ducts and obtained extracts from the islets of :angerhans in cats, noting their glyolytic qualities.
Morton no.: 3959
De Witt, Lydia Maria, "Morphology and physiology of area of Langerhans in some vertebrates." (1906). Classic Article Collection. 78.