Insulin - Like Growth Factors. Somatomedins (Basic Chemistry, Biology and Clinical Importance. Proceedings of a Symposium on Insulin-Like Growth Factors, Somatomedins, Nairobi, Kenya, November 13–15, 1982) || LONG-TERM IN VIVO EFFECTS OF INSULIN-LIKE GROWTH FACTORS (IGF) I AND II ON GROWTH INDICES: DIRECT EVIDENCE IN FAVOR OF THE SOMATOMEDIN HYPOTHESIS