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(en) Johannes Nielsen et Mogens Wohlert, « Chromosome abnormalities found among 34910 newborn children: results from a 13-year incidence study in Arhus, Denmark », Human Genetics, vol. 87, no 1, , p. 81–83 (ISSN0340-6717 et 1432-1203, DOI10.1007/bf01213097, lire en ligne, consulté le )
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(en) Shanlee M. Davis, Alan D. Rogol et Judith L. Ross, « Testis Development and Fertility Potential in Boys with Klinefelter Syndrome », Endocrinology and Metabolism Clinics of North America, vol. 44, no 4, , p. 843–865 / Table 1 (DOI10.1016/j.ecl.2015.07.008, lire en ligne, consulté le )
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(en) Michael Zitzmann, Lise Aksglaede, Giovanni Corona et Andrea M. Isidori, « European academy of andrology guidelines on Klinefelter Syndrome: Endorsing Organization: European Society of Endocrinology », Andrology, , andr.12909 (ISSN2047-2919 et 2047-2927, DOI10.1111/andr.12909, lire en ligne, consulté le )