title: Studies of an activity from endothelial cells that inhibits platelet aggregation, serotonin release, and clot retraction.
mesh_terms: D000244:Adenosine Diphosphate / Q000494:pharmacology; D001780:Blood Coagulation Tests; D003094:Collagen / Q000494:pharmacology; D004727:Endothelium / Q000166:cytology; D004837:Epinephrine / Q000494:pharmacology; D005260:Female; D005615:Freezing; D006801:Humans; D010973:Platelet Adhesiveness; D010974:Platelet Aggregation; D012701:Serotonin / Q000378:metabolism; D013917:Thrombin / Q000494:pharmacology; D014471:Umbilical Veins / Q000166:cytology*
chemical_list: D012701:Serotonin; D000244:Adenosine Diphosphate; D003094:Collagen; D013917:Thrombin; D004837:Epinephrine