Analysis of sagittal profile of spine using 3D ultrasound imaging: a phantom study and preliminary subject test. - Timothy Tin-Yan Lee; Chung-Wai James Cheung; Siu-Yu Law; Michael Kai Tsun To; Jason Pui Yin Cheung; Yong-Ping Zheng (Comput. methods Biomech. Biomed. Eng. Imaging Vis., 2020)