Ultrathin Diaphragm Curved Piezoelectric Micromachined Ultrasound Transducers Enabling 2.5 V Low Voltage Artery Monitoring. - Xiaofan Hu; Yongquan Ma; Yuewu Gong; Hao Li; Wei Pang; Wanli Yang; Zhuochen Wang; Wenle Ye; Pengfei Niu (IEEE Trans. Biomed. Eng., 2026)