Transcranial Focused Ultrasound Stimulation of Periaqueductal Gray for Analgesia. - Tao Zhang; Zhen Wang; Huageng Liang; Zhengjie Wu; Jiapu Li; Jun Ouyang; Xiaofei Yang 005; Yuan Bo Peng; Benpeng Zhu (IEEE Trans. Biomed. Eng., 2022)