AUTHOR=Eicher Barbara , Esslinger Christoph , Hillenbrand Matthias TITLE=Quantification of endogenous and therapeutic IgG crossing the kidney barrier from bloodstream to urine JOURNAL=Frontiers in Pharmacology VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2025.1572739 DOI=10.3389/fphar.2025.1572739 ISSN=1663-9812