fig4
![A dual-mode wearable sensor with coupled ion and pressure sensing](https://image.oaes.cc/51e33d59-f81f-4955-8e49-94a123a68e90/ss3041.fig.4.jpg)
Figure 4. On-body test. The red curves indicate the detection of the pulse. The purple cures indicate simultaneous detection of the sweat Na+ and pulse.
Figure 4. On-body test. The red curves indicate the detection of the pulse. The purple cures indicate simultaneous detection of the sweat Na+ and pulse.
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