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Data about artefacts observed for individual ECG-belt and number of use (n). (A) The median and interquartile range of artefacts observed for individual ECG-belts. (B) Average difference (standard deviation) in artefacts between ECG-belt and gel electrodes and standard deviation to emphasize ECG-belt associated artefacts. (C) The average change in artefacts (standard deviation) for consecutive applications of individual ECG-belts.
