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American Society for Reproductive Medicine

Assisted Hatching

A type of micromanipulation procedure designed to improve implantation, whereby the embryologist makes a chemical opening on the zona pellucida of an embryo to allow the cleaved embryo to exit prior to implantation 

Assisted Reproductive Technology (ART)

A set of techniques to help couples achieve pregnancy after other surgical and hormonal methods have failed, encompassing controlled ovarian hyperstimulation (COH) and intrauterine inseminatino (IUI), in vitro fertilization-embryo transfer (IVF-ET), gamete intrafallopian transfer GIFT and zygote intrafallopian transfer (ZIFT) 


Without any symptoms


American Urologic Association


Antibodies formed against one's own tissues


An immune reaction against one's own tissues


Condition in which there are no sperm in the seminal fluid. This may be due to blockage of transport of sperm or to an impairment of sperm production. 

Center for Male Reproductive Medicine & Microsurgery Weill Cornell Medicine
525 E 68th Street
New York, NY 10065