Selection of acute ischaemic stroke patients for intra-arterial thrombolysis with prourokinase using ASPECTS by Hill, MD, Rowley, H, Adler, F, Eliasziw, M, Furlan, A, Higashida, RT, Wechsler, L, Roberts, H, Dillon, W, Fischbein, N, Firszt, C, Schulz, G, Buchan, A, Investigators, PROACT-II