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. 2021 Jan 2;30(2):661–667. doi: 10.1007/s00167-020-06398-3

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© The Author(s) 2020

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Fig. 1 — Setup of dynamic radiostereometric analysis (RSA). a RSA setup for the sit-to-stand motor task. b 3D environment of the RSA software for data processing, with contours segmentation on the radiographic images and semi-automatic model positioning