Article
Clinical efficacy of spermatid conception: analysis using a new spermatid classification scheme
1 May 1999
Abstract excerpt
Fertilization and pregnancy outcomes of 50 round spermatid injection (ROSI) and 20 elongated spermatid injection (ELSI) treatment cycles are related to various characteristics of the cycles, with particular reference to spermatid developmental stage as assessed by using a classification scheme adapted to this purpose. Although this classification includes eight stages, a complete block was mostly detected at the...
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