Intra- and inter-operator variability in MRI-based manual segmentation of HCC lesions and its impact on dosimetry oleh Elise C. Covert, Kellen Fitzpatrick, Justin Mikell, Ravi K. Kaza, John D. Millet, Daniel Barkmeier, Joseph Gemmete, Jared Christensen, Matthew J. Schipper, Yuni K. Dewaraja