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(a–f): Examples of samples classified as unacceptable by the expert cardiologists (the y-scale is not the same for each plot to make the signal morphology more readable and precise). Classifications were made with a time resolution of a cardiac beat and then reported on 10 s windows considering the predominant type. The consequence is visible in the (e,f) plots, where despite some beats being visible, they are inserted in a 10 s window with prevalent unreadable parts.
