Correction

The article titled Evaluating the Serum Free-to-protein-bound Iodine Ratio against Urinary Iodine for the Assessment of Maternal Iodine Status and Thyroid Nodules (Zijian Jin, Meina Ji, Qi Meng, Qi Jin, Hexi Zhang, Fei Li, Pengxin Li, Yantong Liu, Duan Li, Yidan Wei, Wenxing Guo, and Wanqi Zhang) was published in Biomedical and Environmental Sciences, 2026, 39(8): 1009-1012. The previous funding was National Natural Science Foundation of China (No. 2230113 and No. 81920108031). Now the funding is corrected to National Natural Science Foundation of China (No. 82230113 and No. 81920108031).