Preimplantation Genetic Screening in the age of 23-chromosome evaluation Why FISH is no longer an acceptable technology?

Paul R. Brezina¹ and William G. Kearns²

¹Division of Reproductive Endocrinology and Infertility, Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Phipps 264, 600 N. Wolfe Street, 10751 Falls Road, Suite #280, Baltimore, MD 21287, USA, E-mail: pbrezin1@jhmi.edu

²Department of Gynecology and Obstetrics, Johns Hopkins Medical Institutions, Baltimore, MD, Center for Preimplantation Genetics, LabCorp. Rockville. MD 20850, USA, E-mail: pbrezin1@jhmi.edu