Focal spermatogenesis originates in euploid germ cells in classical klinefelter patients

Human Reproduction 2009; 24(9): 2353-2360.
R.B. Sciurano, C.V. Luna Hisano, M.I. Rahn, S. Brugo Olmedo, G. Rey Valzacchi, R. Coco, A.J. Solari.