PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 618992-6 1978 The release of [14C]serotonin by thrombasthenic platelets as a function of thrombin concentration was also similar to release by normal platelets. Carbon-14 16-19 coagulation factor II, thrombin Homo sapiens 75-83