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. 2019 Oct 10;19(20):4377. doi: 10.3390/s19204377

Figure 1.

Figure 1

(A) Recording of Einthoven lead I between the left arm wrist and the right index finger. (B) Recording of Einthoven lead II between the left lower abdominal region and the right index finger. (C) Recording of Einthoven lead III between the left lower abdominal region and the left index finger. (D) Recording of Wilson-like right (Wr) with smartwatch at the fourth intercostal space right parasternal. (E) Recording of Wilson-like medial (Wm) with the smartwatch at the fifth intercostal space midclavicular line. (F) Recording of Wilson-like left (Wl) with the smartwatch at the fifth intercostal space in left midaxillary line.