the cases submitted to the international co-operative study on timing of aneurysm surgery by the university of toronto hospitals , and the cases submitted from multiple centres to the three-dose multicentre randomized double-blind nimodipine study were evaluated with regard to operative difficulties and complications , comparing early ( less than or equal to 3 days ) and late ( greater than or equal to 4 days ) surgery following subarachnoid hemorrhage .
C0028094
nimodipine
C0038525
subarachnoid hemorrhage