Cover design The cover of Human Reproduction shows the karyotyping of a section of seminiferous tubule from a man with non-mosaic KlinefelterŐs syndrome who was positive for the presence of round spermatids/spermatozoa in minced testicular samples. FISH has been used to demonstrate the presence of both 47,XXY and 46,XY spermatogonia. For further details, see pp. 886-896.
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