RHD gene allele^fetus:Prid:Pt:Plas.cfDNA:Nom
rhd gene allele^fetus:prid:pt:plas.cfdna:nom
RHD gene allele^fetus:Presence or Identity:To identify measures at a point in time:Plasma.cfDNA:Nominal
rhd gene allele^fetus:presence or identity:to identify measures at a point in time:plasma.cfdna:nominal