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Voortman, L.M. (author), Stallinga, S. (author), Schoenmakers, R.H.M. (author), Van Vliet, L.J. (author), Rieger, B. (author)Today, the resolution in phase-contrast cryo-electron tomography is for a significant part limited by the contrast transfer function (CTF) of the microscope. The CTF is a function of defocus and thus varies spatially as a result of the tilting of the specimen and the finite specimen thickness. Models that include spatial dependencies have not...journal article 2011