1. From the Department of Neurology (K.M., A.M., G.S., L.B., S.S., B.K.), University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg (FAU), Germany.
2. Transfusion and Haemostaseology Department (E.F.S.), University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg (FAU), Germany.
3. Department of Neuroradiology (T.E.), University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg (FAU), Germany.