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Several retrospective analyses of our in-vitro fertilization (IVF) and oocyte donation programmes have been carried out in an attempt to gain clinical knowledge of the factors implied in the aetiology of endometriosis-associated infertility. In a first approach, a comparison was made of the IVF outcome between 96 cycles in 78 patients with tubal infertility(More)
Previously spermatozoa in the semen of vasectomized men were reported in 62 of 63 specimens from 24 men 2 to 31 years postvasectomy (Freund and Couture, 1982). A morphologic basis and term, "microrecanalization," was proposed for this observation. Serial sections (5 mu at 200-mu intervals) of 40 specimens removed at vasovasostomy from 20 men (2 to 14 years(More)
Ratings of human sperm motility by visual estimation through the microscope remain important measures of semen quality and of male fertility. More objective methods, including cinemicrography, time lapse photography, and videomicrography, are advocated. Subjective (visual) and objective (cinemicrographic) ratings of motility were compared. Sixty workers in(More)
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