PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1374006-2 1992 Selected clones secreted 2- to 4-fold more TGF beta-competing activity into their media than the parental cell line or neomycin-transfected controls. Neomycin 119-127 transforming growth factor, beta 1 Mus musculus 43-51