VIGNA, Steven R. Evolution of the Cholecystokinin and Gastrin Peptides and Receptors. American Zoologist. 2000-04-01, roč. 40, čís. 2, s. 287–295. Dostupné online. doi:10.1093/icb/40.2.287.
VIGNA, Steven R. Evolution of the Cholecystokinin and Gastrin Peptides and Receptors. American Zoologist. 2000-04-01, roč. 40, čís. 2, s. 287–295. Dostupné online. doi:10.1093/icb/40.2.287.