Macdonald, RL;Kassell, NF;Mayer, S;Ruefenacht, D;Schmiedek, P;Weidauer, S;Frey, A;Roux, S;Pasqualin, A.Clazosentan to overcome neurological ischemia and infarction occurring after subarachnoid hemorrhage (CONSCIOUS-1): randomized, double-blind, placebo-controlled phase 2 dose-finding trial..Stroke.2008.39.11.3015-21