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. 2013 Nov 19;15(1):104. doi: 10.1186/1532-429X-15-104

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Copyright © 2013 Krug et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License( http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Exemplary ICs. Different ICs obtained from datasets D₁(Ff) (a)-(b) and D₂(Ff) (c)-(d). The ICs ${\hat{s}}_{k,ECG}$ shown in (a) and (c) were used for R-peak detection.