Francesco Fiorentino, Director of Genoma Molecular Genetics Laboratory, Rome, Italy, discusses why he feels Preimplantation Genetic Screening (PGS) should be applied in every IVF treatment. His findings are that over 50% of embryos are aneuploidy across all couples. Since these abnormal embryos result in failures to implant or miscarriages, PGS is critical. http://clinical.illumina.com/clinical/reproductive-genetic-health/clinical- labs/preimplantation-genetic-screening.html