Affiliation: | 2. Department of Clinical Medicine, Aalborg University, Aalborg, Denmark;3. Department of Cardiovascular Surgery, Heart Centre of General Hospital, Ningxia Medical University, Yinchuan, Ningxia, Peoples Republic of China;4. Atrial Fibrillation Study Group, Aalborg University Hospital, Aalborg, Denmark;5. Unit of Clinical Biostatistics and Bioinformatics, Aalborg University Hospital, Aalborg, Denmark |