The Focus Foundation team has uploaded some myths and facts about 47, XXY. To get the latest and most accurate information, visit The Focus Foundation site now.
Klinefelter Syndrome Specialists
The Focus Foundation
Klinefelter Syndrome Specialists
820 W Central Ave #190 -, Davidsonville, Maryland, United States 21035
https://thefocusfoundation.org/x-y-chromosomal-variations/xxy/