Association between sperm DNA fragmentation index and recurrent pregnancy loss: results from 1485 participants undergoing fertility evaluation - Yao, Guanying; Dou, Xianchao; Chen, Xiaozhu; Qi, Haolin; Chen, Jianling; Wu, Peiwei; Li, Jialu; Liang, Shuang; Han, Zhongjiang; Bai, Shun; Hu, Xu (Frontiers in Endocrinology, 2025)