title: Design, progress and challenges of a double-blind trial of warfarin versus aspirin for symptomatic intracranial arterial stenosis.
mesh_terms: D000368:Aged; D000925:Anticoagulants / Q000627:therapeutic use*; D001241:Aspirin / Q000627:therapeutic use*; D004311:Double-Blind Method; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D002537:Intracranial Arteriosclerosis / Q000150:complications* / Q000188:drug therapy* / Q000401:mortality; D002546:Ischemic Attack, Transient / Q000209:etiology* / Q000401:mortality / Q000517:prevention & control*; D008297:Male; D008875:Middle Aged; D010975:Platelet Aggregation Inhibitors / Q000627:therapeutic use*; D016730:Program Development; D011446:Prospective Studies; D012107:Research Design; D020521:Stroke / Q000209:etiology* / Q000401:mortality / Q000517:prevention & control*; D015996:Survival Rate; D013997:Time Factors; D014859:Warfarin / Q000627:therapeutic use*
chemical_list: D000925:Anticoagulants; D010975:Platelet Aggregation Inhibitors; D014859:Warfarin; D001241:Aspirin