Comparison between open and closed systems for vitrification of individual sperm: assessing morphometric measurements and chromatin integrity. - Khalili, Mohammad Ali; Vatanparast, Mahboubeh; Mangoli, Esmat; Ghasmi-Esmaeilabad, Saeed; Moshrefi, Mojgan; Hosseini, Akram (Middle East Fertility Society Journal, 2024)