dementia is a syndrome encompassing many intellectual domains that can be broadly defined as an overall decline in intellectual function including difficulties with language, simple calculations, planning and judgment and motor skills as well as loss of memory. a genetic cause is identified in only a minority of patients, but patients and their family members are frequently concerned about the ...

context prenatal testing aims to identify fetal chromosomal and genetic disorders prior to delivery. current invasive procedures such as amniocentesis and chorionic villus sampling (cvs) pose a risk to mother and fetus and such diagnostic procedures are available only to high-risk pregnancies, which limits aneuploidy detection rate. the identification of cell-free fetal dna (cffdna) in maternal ...