PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12875614-4 2003 Lack of PGE1 had no effect on subconfluent C57 and cpk cultures or confluent C57 cultures but had a dramatic effect on confluent cpk cultures. Alprostadil 8-12 cystin 1 Mus musculus 129-132