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We evaluated the fertilizing capacity of round spermatids recovered from varicocelized rabbits. A left varicocele model was created in 5 rabbits (Group A). Four rabbits underwent a sham operation (Group B). After 3 months round spermatid nuclei were collected from the left testicle of each rabbit and injected into oocytes. Oocytes were cultured for 24 hours. The proportion of 2- to 4-cell stage...