Enabling the Unconstrained Epidermal Pulse Wave Monitoring via Finger‐Touching. - Wang, Xue; Yang, Jun; Meng, Keyu; He, Qiang; Zhang, Gaoqiang; Zhou, Zhihao; Tan, Xulong; Feng, Zhiping; Sun, Chenchen; Yang, Jin; Wang, Zhong Lin (Advanced Functional Materials, 2021)