PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
8320843-4	1993	Each vWf subunit has binding sites for collagen, heparin, GP Ib, GPIIb/IIIa and factor VIII.	Heparin	49-56	von Willebrand factor	Homo sapiens	5-8