@article{19871717, title={Alternative Synthesis of the Carboxyl Terminal Tetrapeptide Amide of Cholecystokinin by Means of Proteases}, author={Kiyoshi SAKINA and Keiko KAWAZURA and Kazuyuki MORIHARA}, journal={Agricultural and Biological Chemistry}, volume={51}, number={6}, pages={1717-1718}, year={1987}, doi={10.1271/bbb1961.51.1717} }