Blood urea nitrogen-to-albumin ratio as a new prognostic indicator of 1-year all-cause mortality in patients with IPF - Ge, Shaobo; Li, Yuer; Li, Rui; Liu, Jin; Zhang, Rui; Fu, Hongyan; Tang, Jingjing; Zhang, Jie; Zhang, Nali; Zhang, Ming (Frontiers in Medicine, 2025)