Elasmobranchs express separate cholecystokinin and gastrin genes. Proceedings of the National Academy of Sciences of the United States of America, 94(19), 10221–10226
More to the evolution of the cholecystokinin/gastrin family: Identification of CCK in a cartilaginous fish, the mackerel shark (Lamna cornubica) [Abstract]. Regulatory Peptides, 64(1–3), 81
DOI: 10.1016/0167-0115(96)87881-5