The Risk of Selection Bias in a Clinical Multi-Center Cohort Study. Results from the Norwegian Cognitive Impairment After Stroke (Nor-COAST) Study by Kuvås KR, Saltvedt I, Aam S, Thingstad P, Ellekjær H, Askim T

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Validation of self-reported and hospital-diagnosed atrial fibrillation: the HUNT-study by Malmo V, Langhammer A, Bønaa KH, Loennechen JP, Ellekjaer H

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Risk Stratification in Patients with Ischemic Stroke and Residual Cardiovascular Risk with Current Secondary Prevention by Gynnild MN, Hageman SHJ, Dorresteijn JAN, Spigset O, Lydersen S, Wethal T, Saltvedt I, Visseren FLJ, Ellekjær H

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The Norwegian Cognitive impairment after stroke study (Nor-COAST): study protocol of a multicentre, prospective cohort study by Thingstad, P, Askim, T, Beyer, MK, Bråthen, G, Ellekjær, H, Ihle-Hansen, H, Knapskog, AB, Lydersen, S, Munthe-Kaas, R, Næss, H, Pendlebury, ST, Seljeseth, YM, Saltvedt, I