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. 2016 May 12;16:20. doi: 10.1186/s12894-016-0138-6

Table 3.

Sperm retrieval rate was similar in the groups of patients who underwent or not a previous unsuccesful TESE

Previous TESE No previous TESE Chi square
Positive sperm retrieval 6/23 (26 %) 12/41 (29 %) P = 0.552