Drug-free in vitro activation of ovarian follicles and fresh tissue autotransplantation in patients with poor ovarian response and premature ovarian insufficiency. - Grin L; Berkovitz-Shperling R; Goldstein G; Michailov Y; Gemer O; Anteby E; Kawamura K; Saar-Ryss B; Friedler S (F&S science, 2025)