title: Letter: Heparin and platelets.
mesh_terms: D000991:Antithrombins / Q000494:pharmacology; D001792:Blood Platelets / Q000187:drug effects*; D006493:Heparin / Q000494:pharmacology*; D010973:Platelet Adhesiveness / Q000187:drug effects
chemical_list: D000991:Antithrombins; D006493:Heparin