Reproducibility of mRNA-Based Testing of <i>ESR1</i>, <i>PGR</i>, <i>ERBB2</i>, and <i>MKI67</i> Expression in Invasive Breast Cancer—A Europe-Wide External Quality Assessment

by Ramona Erber, Arndt Hartmann, Peter Andreas Fasching, Matthias Ruebner, Robert Stöhr, Matthias Wilhelm Beckmann, Miriam Zentgraf, Verena Popp, Jodi Weidler, Iris Simon, Steffi Becker, Hanna Huebner, Josephine Fischer, Elena Guerini Rocco, Giuseppe Viale, Anne Cayre, Frederique Penault-Llorca, Tamara Caniego Casas, Belén Pérez-Miés, José Palacios, Paul Jank, Carsten Denkert, Lina Khoury, Thomas Mairinger, Fulvia Ferrazzi
Published 2021-09-01