Development and External Validation of a Web-Based Application for the Prediction of Pneumonia-Associated ARDS0 views•2026•MedicineYu Bai1,2, Meng Zhang1,2, Jun Wan1,2Yu Bai1,2Meng Zhang1,2Jun Wan1,21Department of Pulmonary and Critical Care Medicine, Beijing Anzhen Hospital of Capital Medical University, 2Beijing Institute of Heart, Lung and Blood Vessel DiseasesDepartment of Pulmonary and Critical Care Medicine, Beijing Anzhen Hospital of Capital Medical UniversityBeijing Institute of Heart, Lung and Blood Vessel Diseases