The nonlinear relationship between the ratio of non-high-density lipoprotein cholesterol to high-density lipoprotein cholesterol and the risk of diabetic kidney disease in patients with type 2 diabetes mellitus - Cai, Dan-Xuan; Huang, Ye-Hong; Lin, Ni-Na; Zhang, Yun-Feng; Huang, Shu-Qin; Han, Yun; Hu, Xin-Yu; Cai, Song-Tao; Tao, Yan-Ling (Frontiers in Medicine, 2025)