Шаблон:Cite doi/10.1136.2Fgut.5.2.103

Gregory, R. A. и др. The constitution and properties of two gastrins extracted from hog antral mucosa: Part I the isolation of two gastrins from hog antral mucosa // Gut 5 (2). 1964. DOI:10.1136/gut.5.2.103. с. 103.