On the use of solid 133Ba sources as surrogate for liquid 131I in SPECT/CT calibration: a European multi-centre evaluation oleh Johannes Tran-Gia, Ana M. Denis-Bacelar, Kelley M. Ferreira, Andrew P. Robinson, Christophe Bobin, Lara M. Bonney, Nicholas Calvert, Sean M. Collins, Andrew J. Fenwick, Domenico Finocchiaro, Federica Fioroni, Katerina Giannopoulou, Elisa Grassi, Warda Heetun, Stephanie J. Jewitt, Maria Kotzasarlidou, Michael Ljungberg, Valérie Lourenço, Daniel R. McGowan, Jamie Mewburn-Crook, Benoit Sabot, James Scuffham, Katarina Sjögreen Gleisner, Jaroslav Solc, Cheick Thiam, Jill Tipping, Jill Wevrett, The MRT Dosimetry Collaboration, Michael Lassmann