TY - RPRT TI - Activin B: precursor sequences, genomic structure and in vitro activities. AU - A J Mason AU - L M Berkemeier AU - C H Schmelzer AU - R H Schwall PY - 1989 DO - 10.1210/mend-3-9-1352 UR - https://pubmed.ncbi.nlm.nih.gov/2575216/ ID - 2575216 ER -