AUTHOR=Wang Haohao , Jiang Rendong , Dong Zhishang , Zhao Dongyue , Zhao Jianli , Shi Chao , Yuan Zhen TITLE=Initial investigation into patellofemoral morphology in hemophilic arthritis patients JOURNAL=Frontiers in Surgery VOLUME=11 YEAR=2024 URL=https://www.frontiersin.org/journals/surgery/articles/10.3389/fsurg.2024.1487156 DOI=10.3389/fsurg.2024.1487156 ISSN=2296-875X