Cerebral arterial spasm - a controlled trial of nimodipine in patients with subarachnoid hemorrhage. - Allen,G.S.; Ahn,H.S.; Preziosi,T.J.; Battye,R.; Boone,S.C.; Boone,S.C.; Chou,S.N.; Kelly,D.L.; Weir,B.K.; Crabbe,R.A.; Lavik,P.J.; Rosenbloom,S.B.; et al. (N Engl J Med, 1983)