Maes, M., Underwood, L. E., & Ketelslegers, J.-M. (1983). Plasma somatomedin-C in fasted and refed rats: close relationship with changes in liver somatogenic but not lactogenic binding sites. Journal of Endocrinology, 97(2), 243-252. https://doi.org/10.1677/joe.0.0970243 (Original work published 1983)