3131640 rhIGF-1 recombinant human insulin-like growth factor-1 43 3131645 rhIGF-1 recombinant human IGF-1 36 3131646 rhIGF-1 recombinant hIGF-1 2 3131648 rhIGF-1 recombinant human insulin-like growth factor type 1 2 3131647 rhIGF-1 Rh insulin-like growth factor-1 1