Inclusion Criteria:  First-ever acute stroke (ischemic stroke or intracerebral hemorrhage) with corresponding lesion and/or evidence of acute arterial occlusion on CT (A)- or MRI/A-scan. Age ≥ 19 years at onset of stroke. Onset of symptoms within seven days prior to inclusion.  Exclusion Criteria:  Transient ischemic attack. History of stroke. Traumatic intracerebral hemorrhage. Not Korean.