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"Subcutaneous implantable testosterone pellets overcome noncompliance in adolescents with Klinefelter syndrome". Journal of Andrology. 33 (4): 570–3. 2012. doi:10.2164/jandrol.111.013979. PMID21940986.
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nichd.nih.gov
"Klinefelter Syndrome (KS): Overview". nichd.nih.gov. Eunice Kennedy Shriver National Institute of Child Health and Human Development. 2013-11-15. Diarsipkan dari versi asli tanggal 2015-Maret-18. Diakses tanggal 2015-03-15.Periksa nilai tanggal di: |archive-date= (bantuan)
"Klinefelter Syndrome". Eunice Kennedy Shriver National Institute of Child Health and Human Development. 2007-05-24. Diarsipkan dari versi asli tanggal 2012-11-27.
"Klinefelter syndrome". Genetics Home Reference. National Library of Medicine. 2012-10-30. Diarsipkan dari versi asli tanggal 2012-11-15. Diakses tanggal 2012-11-02.
"Klinefelter Syndrome (KS): Overview". nichd.nih.gov. Eunice Kennedy Shriver National Institute of Child Health and Human Development. 2013-11-15. Diarsipkan dari versi asli tanggal 2015-Maret-18. Diakses tanggal 2015-03-15.Periksa nilai tanggal di: |archive-date= (bantuan)
"Klinefelter syndrome". Genetics Home Reference. National Library of Medicine. 2012-10-30. Diarsipkan dari versi asli tanggal 2012-11-15. Diakses tanggal 2012-11-02.
"Klinefelter Syndrome". Eunice Kennedy Shriver National Institute of Child Health and Human Development. 2007-05-24. Diarsipkan dari versi asli tanggal 2012-11-27.
Leask, Kathryn (2005). "Klinefelter syndrome". National Library for Health, Specialist Libraries, Clinical Genetics. National Library for Health. Diarsipkan dari versi asli tanggal 2007-09-27. Diakses tanggal 2007-04-07.