Keyphrases
High-income Countries
100%
Meta-analysis
100%
Systematic Meta-analysis
100%
Adverse Pregnancy Outcomes
100%
Confidence Interval
100%
Relative Risk
100%
Randomized Controlled Trial
50%
Clinical Evidence
33%
Preterm Birth
33%
Small-for-gestational Age
33%
Evaluation Assessment
33%
Assessment Development
33%
Neural Tube Defects
33%
Embase
16%
Cochrane
16%
Prospective Cohort Study
16%
Congenital Anomalies
16%
Evaluation Approach
16%
Folic Acid
16%
Vitamin Intake
16%
Nutritional Value
16%
During Pregnancy
16%
MEDLINE
16%
Perinatal Mortality
16%
Low Birth Weight
16%
Poor Quality
16%
Limb Deficiency
16%
Stillbirth
16%
CINAHL
16%
Birth Relatives
16%
Research Assessment
16%
Random Effects Model
16%
Assessment Approach
16%
Developmental Systems
16%
Vitamins
16%
Scopus
16%
Neonatal Death
16%
Healthy Diet
16%
RevMan
16%
Research Evaluation
16%
Development Approach
16%
Medicine and Dentistry
Meta-Analysis
100%
Birth Outcomes
100%
Systematic Review
100%
Randomized Controlled Trial
42%
Premature Labor
28%
Small for Gestational Age
28%
Neural Tube Defect
28%
Stillbirth
14%
Folic Acid
14%
Newborn Death
14%
Congenital Malformation
14%
Iron
14%
Limb Defect
14%
Cardiovascular System
14%
Prospective Cohort Study
14%
Low Birth Weight
14%
Recurrent Disease
14%
Observational Study
14%
Vitamin Intake
14%
Healthy Diet
14%
Diet Quality
14%
Perinatal Mortality
14%
Random Effects Model
14%
Nutritive Value
14%
Pharmacology, Toxicology and Pharmaceutical Science
Multivitamin
100%
Randomized Controlled Trial
42%
Small for Date Infant
28%
Premature Labor
28%
Neural Tube Defect
28%
Folic Acid
14%
Low Birth Weight
14%
Perinatal Mortality
14%
Iron
14%
Random Effects Model
14%
Prospective Cohort Study
14%
Tablet
14%
Recurrent Disease
14%
Congenital Malformation
14%
Observational Study
14%
Newborn Death
14%
Limb Defect
14%
Stillbirth
14%