A Wireless Implantable Passive Intra-Abdominal Pressure Sensing Scheme via Ultrasonic Imaging of a Microfluidic Device. - Hongjie Jiang; Ian Woodhouse; Vidhya Selvamani; Jessica L. Ma; Renxiang Tang; Craig J. Goergen; Tahereh Soleimani; Rahim Rahimi (IEEE Trans. Biomed. Eng., 2021)