The relationship between blood urea nitrogen to serum albumin ratio and cardiovascular diseases, cardiovascular mortality, and all-cause mortality in patients with diabetes mellitus - Zhu, Hongwei; Xie, Wei; Wang, Peng; Jiang, ShuYuan; Hua, YunQi; Shao, Guo; Li, ZhiHui (Frontiers in Endocrinology, 2025)