Effects of iodinated contrast agent on HU-based dose calculation and dose delivered in iridium-192 high-dose-rate brachytherapy - Scherf, Christian; Ramm, Ulla; Stein, Thomas; Trommel, Martin; Tselis, Nikolaos; Chatzikonstantinou, Georgios; Diefenhardt, Markus; Rödel, Claus; Köhn, Janett; Licher, Jörg (Journal of Contemporary Brachytherapy, 2022)