Medicine and Dentistry
First Trimester Pregnancy
100%
Premature Labor
67%
Twin Pregnancy
45%
Progesterone
38%
Pregnancy
36%
Randomized Controlled Trial
31%
Down Syndrome
28%
Trisomy 21
27%
Obstetrics
25%
Meta-Analysis
25%
Placebo
24%
Perinatology
24%
Second Trimester Pregnancy
24%
Nuchal Translucency Measurement
24%
Odds Ratio
23%
Gestational Age
21%
Amniocentesis
21%
Chromosome Aberration
20%
Cervix
20%
Chorionic Villus Sampling
20%
Spontaneous Abortion
20%
Cervical Length Measurement
19%
Pregnancy-Associated Plasma Protein A
18%
Gynecology
17%
Fetus Growth
16%
Cell-Free Fetal DNA
16%
Fetus Wastage
16%
Cohort Analysis
16%
Cesarean Section
15%
Keyphrases
First-trimester Screening
72%
Denmark
60%
Pregnant Women
43%
Twin Pregnancy
42%
Preterm Delivery
40%
Ultrasound
33%
Trisomy 21
30%
Confidence Interval
27%
Down Syndrome
26%
Fetus
26%
Pregnancy-associated Plasma protein-A (PAPP-A)
24%
Singleton Pregnancy
23%
High Risk
22%
Fetal Medicine
22%
First Trimester
20%
Nuchal Translucency
19%
Chromosomal Abnormalities
17%
Randomized Controlled Trial
16%
Invasive Testing
15%
Twin Gestation
15%