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Keyphrases
Preterm Birth
100%
Twin Pregnancy
100%
Betamimetics
100%
95% Confidence Interval
92%
Risk Ratio
84%
Neonate
38%
Average Risk
30%
Random Effects
30%
High-risk Pregnancy
30%
Placebo
15%
Neonatal Mortality
15%
Nonindependence
15%
MEDLINE
7%
Confidence Interval
7%
Randomized Controlled Trial
7%
Selection Criteria
7%
High Risk
7%
Placebo Groups
7%
Singleton Pregnancy
7%
Neonatal Birth Weight
7%
Respiratory Distress Syndrome
7%
Neonatal Morbidity
7%
Preterm Labor
7%
Low Birth Weight
7%
Cochrane
7%
Childbirth
7%
Maternal Death
7%
Review Authors
7%
Search Methods
7%
Cluster Randomized Trial
7%
Embase
7%
Adjusted Analysis
7%
Unadjusted Analyses
7%
Contraction Rate
7%
Preterm Birth Prevention
7%
Quasi-randomized Controlled Trial
7%
Prevention of Preterm Labor
7%
Risk of Bias
7%
Number of Participants
7%
GRADE Approach
7%
Prelabor Rupture of Membranes
7%
Specific Aims
7%
Lack of Evidence
7%
Extracted Data
7%
Small-for-gestational-age Neonates
7%
Crossing Lines
7%
Medicine and Dentistry
Premature Labor
100%
Twin Pregnancy
100%
Oral
100%
Neonate
50%
Placebo
25%
Randomized Controlled Trial
16%
Newborn Mortality
16%
Group Trial
8%
Birth Weight
8%
Small for Gestational Age
8%
Low Birth Weight
8%
Maternal Death
8%
Newborn Morbidity
8%
Cluster Randomized Trial
8%
Rupture of Membranes
8%
Hyaline Membrane Disease
8%