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Medicina|January 1, 1995
[Pregnancy with testicular spermatozoa]R Sergio Pasqualini, C Quintans, G R Valzacchi, et al.Medicina|January 1, 1993
[Pregnancy with spermatozoa from the head of the epididymis in spermatic duct agenesis]R S Pasqualini, G R Valzacchi, C J Quintans, et al.Medicina|January 1, 1997
[Pregnancy obtained by intracytoplasmic oocyte injection of spermatozoa retrieved from a cryopreserved testicular biopsy]C J Quintans, G R Valzacchi, M J Donaldson, et al.Pageof 1