AUTHOR=Zielen S. , Wosniok J. , Wollscheid N. , Nickolay T. , Grimmel C. , Scheele D. , Sattler F. , Prenzel F. , Lorenz M. , Schaub B. , Lex C. , Dahlheim M. , Trischler J. , Donath H. , Lau S. , Hamelmann E. , Vogelberg C. , Gerstlauer M. , Wetzke M. , Schubert R. , Schollenberger L. , Gappa M. TITLE=Characteristics of children with severe preschool asthma prior to starting the TIPP study JOURNAL=Frontiers in Pediatrics VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/pediatrics/articles/10.3389/fped.2025.1558256 DOI=10.3389/fped.2025.1558256 ISSN=2296-2360