Urological Note Prognostic factors for high sperm DNA fragmentation in infertile Japanese men Akiyoshi Osaka MD, PhD, Corresponding Author Akiyoshi Osaka MD, PhD Department of Urology, Dokkyo Medical University Saitama Medical Center, Koshigaya, Saitama, Japan International Center for Reproductive Medicine, Dokkyo Medical University Saitama Medical Center, Koshigaya, Saitama, Japan Contribution: Data curation, Writing - original draft, Formal analysis Search for more papers by this...