Reference values of carotid intima-media thickness and arterial stiffness in Chinese adults based on ultrasound radio frequency signal: A nationwide, multicenter study oleh Changyang Xing, Xiujing Xie, Yu Wu, Lei Xu, Xiangping Guan, Fan Li, Xiaojun Zhan, Hengli Yang, Jinsong Li, Qi Zhou, Yuming Mu, Qing Zhou, Yunchuan Ding, Yingli Wang, Xiangzhu Wang, Yu Zheng, Xiaofeng Sun, Hua Li, Chaoxue Zhang, Cheng Zhao, Shaodong Qiu, Guozhen Yan, Hong Yang, Yinjuan Mao, Weiwei Zhan, Chunyan Ma, Ying Gu, Wu Chen, Mingxing Xie, Tianan Jiang, Lijun Yuan, Jinjiao Li