PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 25677981-5 2015 The ability of platelet aggregation induced by ristocetin and collagen related to GPIbalpha and GPVI in the sheared blood samples, respectively, was evaluated by aggregometry. Ristocetin 47-57 glycoprotein VI platelet Homo sapiens 96-100