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이상민,정지영,한용태,박해택,박흠대,정길생,이기영,Lee, S.M.,Jung, J.Y.,Han, Y.T.,Park, H.T.,Park, H.D.,Chung, K.S.,Lee, K.Y. 대한생식의학회 1998 Clinical and Experimental Reproductive Medicine Vol.25 No.2
We demonstrated that the normal pregnancy and delivery by round spermatid injection (ROSI) into oocytes was achieved from nonobstructive azoospermia patient. In this case, the normal fertilization rate was 50%. All of the two pronuclear stage embryos cleaved and were transferred to the patient's uterus. A singleton pregnancy was achieved and resulted in the birth of normal female infant. This resuJt show that intracytoplasraic injection of round spermatid seems to be new treatment of nonobstmctive azoospermia male infertility. Further research is needed to evaluate the required culture conditions to induce progression of the round spermatid into a more elongated stage.