TY - RPRT TI - Structure-function relationships in the active C-terminal tetrapeptide sequence of gastrin. AU - J S Morley AU - H J Tracy AU - R A Gregory PY - 1965 DO - 10.1038/2071356a0 UR - https://pubmed.ncbi.nlm.nih.gov/5886035/ ID - 5886035 ER -