F3 and angina pectoris: d) Cluster 4 tags point to a specific disease where aspirin is included in the therapeutic protocol, e.g. heart diseases (tags: angina pectoris, anticoagulant, antithrombin, anti-Xa, clotting, embolisms, heparins, induced thrombocytopenia, ischemic, LMWH, low molecular weight heparin, myocardial infractions, prothrombin, thrombin, thrombosis, thromboplastin, unstable angina pectoris, venous thrombosis).