AUTHOR=Petrek Martin , Hitchman Kelley M. K. TITLE=Editorial: Proficiency testing in histocompatibility and immunogenetics: current status and future perspectives JOURNAL=Frontiers in Genetics VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/genetics/articles/10.3389/fgene.2025.1619032 DOI=10.3389/fgene.2025.1619032 ISSN=1664-8021