Trisomy 21 risk based on maternal age + Pregnancy associated plasma protein A + Choriogonadotropin + Nuchal translucency:Likelihood:Pt:^Fetus:Qn
trisomy 21 risk based on maternal age + pregnancy associated plasma protein a + choriogonadotropin + nuchal translucency:likelihood:pt:^fetus:qn
Trisomy 21 risk based on maternal age+Pregnancy associated plasma protein A+Choriogonadotropin+Nuchal translucency Qn (fetus)
trisomy 21 risk based on maternal age+pregnancy associated plasma protein a+choriogonadotropin+nuchal translucency qn (fetus)