Detection of urinary SERPINA4 by electrochemiluminescence immunoassay and development of a diagnostic model for diabetic nephropathy​LiMei Yang, Huan Li, Fei Chen, Hui Zhang, Feng Wang, WenQian Guo, Ying Shen, ZiJie Liu1Yunnan Key Laboratory of Laboratory Medicine, Kunming, China2Department of Clinical Laboratory, 71240The First Affiliated Hospital of Kunming Medical University, Kunming, China3Department of Nephrology, 74621The First People’s Hospital of Yunnan Province, Kunming, China436657Department of Nephrology, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Chinaon June 11, 2025 at 9:13 am