In vitro effects of green tea (Camellia sinensis) aqueous extract on sperm quality: Mitigating oxidative stress and sperm DNA fragmentation in freeze-dried human spermatozoa - Narges Joulaeerad; Homa Hajimehdipoor; Mohammad Hossein Heidari; Mahsa Kazemi; Hamid Nazarian; Zahra Shams Mofarahe; Latif Gachkar; Marefat Ghaffari Novin (Clinical and Experimental Reproductive Medicine, 2026)