PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
7254200-3	1981	Chicken cell surface fibronectin from fibroblast cultures was purified by ammonium sulfate precipitation followed by chromatography on Sepharose-CL4B.	Sepharose CL 4B	135-149	fibronectin 1	Gallus gallus	21-32