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Values are presented as mean±standard deviation or number (%).
DGC-SUP, density gradient centrifugation/swim-up; SUP, swim-up; SWM, sperm washing medium; IVF, in vitro fertilization; 2PN, two pronuclei; ICSI, intra cytoplasmic sperm injection.
a)Fertilization rate: number of 2PN instances.
