OP22.04: Non‐invasive prenatal testing (NIPT) for 22q11.2 deletion syndrome using a targeted microarray‐based cell‐free DNA (cfDNA) test. (September 2017) - Schmid, M.; Wang, E.; Bogard, P.; Zahn, J.; Hacker, C.; Stokowski, R.; Wang, S.; White, K.; Sparks, A.