AUTHOR=Doxiadis Ilias , Lehmann Claudia TITLE=External proficiency testing exercises: challenges and opportunities JOURNAL=Frontiers in Genetics VOLUME=15 YEAR=2024 URL=https://www.frontiersin.org/journals/genetics/articles/10.3389/fgene.2024.1304312 DOI=10.3389/fgene.2024.1304312 ISSN=1664-8021