Interestingly , as ART has evolved , so too have novel FNA techniques to help diagnose and treat severe male infertility .
Currently , sources of sperm routinely used for ICSI include sperm from the vas deferens , epididymis , and testicle .
As ART has evolved , so too have novel FNA techniques to help diagnose and treat severe male infertility .
Currently , sources of sperm routinely used for ICSI include sperm from the vas deferens , epididymis , and testicle .