Quality of MALDI-TOF mass spectra in routine diagnostics: results from an international external quality assessment including 36 laboratories from 12 countries using 47 challenging bacterial strains

Aline Cuénod, Martina Aerni, Claudia Bagutti, Banu Bayraktar, Efe Serkan Boz, Cynthia Beisert Carneiro, Carlo Casanova, Alix T. Coste, Peter Damborg, D. W. van Dam, Mehmet Demırci, Pavel Dřevı́nek, Olivier Dubuis, José Fernandez, Gilbert Greub, Jaroslav Hrabák, Gulen Hurkal Yigitler, Jakub Hurych, Thøger Gorm Jensen, Géraldine Jost, Greetje A. Kampinga, Sonja Kittl, Christine Lammens, Claudia Lang, Reto Lienhard, Julie V. Logan, Carola Maffioli, Ivana Mareković, Matthias Marschal, Jacob Moran‐Gilad, Oliver Nolte, Michael Oberle, Michael Pedersen, Valentin Pflüger, Sigrid Pranghofer, Julia Reichl, Rob J. Rentenaar, Arnaud Riat, Belén Rodríguez‐Sánchez, Camille Schilt, Ann-Kathrin Schlotterbeck, Jacques Schrenzel, Shani Troib, Elise Willems, Mandy Wootton, Dominik Ziegler, Adrian Egli