AUTHOR=Lu Siwei , Sun Yuelin , Chen Yingfu , Fu Yueqiang , Li Jing , Liu Chengjun TITLE=Utilization of ECMO with fiberoptic bronchoscopy for pediatric patients with lethal pulmonary hemorrhage unresponsive to conventional mechanical ventilation JOURNAL=Frontiers in Pediatrics VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/pediatrics/articles/10.3389/fped.2025.1547579 DOI=10.3389/fped.2025.1547579 ISSN=2296-2360