Lipoprotein(a) and genetic polymorphisms of clotting factor V, prothrombin and methylenetetrathydrofolate reductase are risk factors of spontaneous ischemic stroke in childhood. - Nowack-Göttl,U.; Sträter,R.; Heinecke,A.; Junker,R.; Koch,H.-G.; Schurier,G.; von Eckardstein,A. (Blood, 1999)