AUTHOR=Anderson-Watters Miles , Khan Ilyas M. TITLE=BMP9 induces postnatal zonal stratification of immature articular cartilage through reconfiguration of the existing collagen framework JOURNAL=Frontiers in Cell and Developmental Biology VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/cell-and-developmental-biology/articles/10.3389/fcell.2024.1511908 DOI=10.3389/fcell.2024.1511908 ISSN=2296-634X