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APA Citation
Bode-Schnurbus, L., Böcker, D., Block, M., Gradaus, R., Heinecke, A., Breithardt, G., & Borggrefe, M. (2003). qRS duration: a simple marker for predicting cardiac mortality in ICD patients with heart failure. Postgraduate medical journal, 79(938), 714. http://access.bl.uk/ark:/81055/vdc_100137791618.0x000034