TY - RPRT TI - Insulin biosynthesis: evidence for a precursor. AU - D F Steiner AU - D Cunningham AU - L Spigelman AU - B Aten PY - 1967 DO - 10.1126/science.157.3789.697 UR - https://pubmed.ncbi.nlm.nih.gov/4291105/ ID - 4291105 ER -