AUTHOR=Herrmann Franziska Elena , Hesslinger Christian , Wollin Lutz , Nickolaus Peter TITLE=Corrigendum: BI 1015550 is a PDE4B inhibitor and a clinical drug candidate for the oral treatment of idiopathic pulmonary fibrosis JOURNAL=Frontiers in Pharmacology VOLUME=14 YEAR=2023 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2023.1219760 DOI=10.3389/fphar.2023.1219760 ISSN=1663-9812