Controlled natural in vitro fertilization may be an alternative for patients with repeated unexplained implantation failure and a high uterine natural killer cell count
Abstract
Patients with a history of repeated and unexplained implantation failure after IVF-embryo transfer and a high uterine natural killer cell count during estrogen-progestin treatment may benefit from controlled natural IVF-ET.
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PII: S0015-0282(04)00615-6
doi:10.1016/j.fertnstert.2003.12.030
© 2004 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.

