Expression of recombinant extracellular domain of the type II transforming growth factor-beta receptor: utilization in a modified enzyme-linked immunoabsorbent assay to screen TGF-beta agonists and antagonists.

Expression of recombinant extracellular domain of the type II transforming growth factor-beta receptor: utilization in a modified enzyme-linked immunoabsorbent assay to screen TGF-beta agonists and antagonists.