Kualitas sperma pria dapat menurun akibat faktor medis seperti varikokel, infeksi, gangguan hormon, efek obat-obatan, hingga kelainan bawaan yang menghambat produksi sperma secara optimal. Paparan ...
Klinefelter syndrome is the most common sex-chromosome disorder; it affects approximately one in every 660 men. This syndrome is characterized by the presence of one or more extra X chromosomes, and ...
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