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. 2010 Sep 7;103(8):1269–1276. doi: 10.1038/sj.bjc.6605880

Table 2. Proliferation index.

  MI (median) Ki-67 (mean)
CIS 1.58% (n=13) 17.42% (n=4)
Spermatogonia 0.25% (n=4) 6.75% (n=4)
CIS vs spermatogonia P=0.001 P<0.001

Abbreviations: CIS, carcinoma in situ; MI, mitotic index.