Cell-free (cf) DNA screening is a noninvasive prenatal screening approach that is typically used to screen for common fetal trisomies. with optional screening for sex chromosomal aneuploidies and fetal sex. Genome-wide cfDNA screening can screen for a wide variety of additional anomalies. including rare autosomal aneuploidies (RAAs) and copy number variants. https://www.littletreehouselanes.shop/product-category/mattress-protectors/