Keyphrases
Second Trimester
100%
Multiple of the Median
100%
Nasal Bone
100%
Down Syndrome Screening
100%
Nasal Bone Hypoplasia
100%
Screening Efficacy
100%
Biparietal Diameter
50%
Nasal Bone Length
50%
Gestational Age
33%
Down Syndrome
33%
Prospective Cohort Study
16%
Week of Gestation
16%
Maternal Race
16%
Anatomic Survey
16%
Syndrome Detection
16%
Fetal Aneuploidy
16%
Age Categories
16%
Absent Nasal Bone
16%
Fetal Nasal Bone
16%
Second Trimester of Pregnancy
16%
Medicine and Dentistry
Second Trimester Pregnancy
100%
Down Syndrome
100%
Hypoplasia
100%
Multiple of the Median
100%
Nasal Bone
100%
Gestational Age
14%
Pregnancy
7%
Prospective Cohort Study
7%
Aneuploidy
7%
Age Groups
7%
Biochemistry, Genetics and Molecular Biology
Down Syndrome
100%
Second Trimester Pregnancy
100%
Pregnancy
33%
Prospective Cohort Study
33%
Aneuploidy
33%
Veterinary Science and Veterinary Medicine
Nasal Bone
100%
Pregnancy
7%