Biomarkers Associated with Atrial Fibrillation in Patients with Ischemic Stroke: A Pilot Study from the NOR-FIB Study oleh Anna  Tancin Lambert, Xiang Y. Kong, Barbara Ratajczak-Tretel, Dan Atar, David Russell, Mona Skjelland, Vigdis Bjerkeli, Karolina Skagen, Matthieu Coq, Eric Schordan, Huseyin Firat, Bente Halvorsen, Anne H. Aamodt