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Pregnancy
Gestational Age
Maternal-Fetal Exchange
Organ Size
Fetal Growth Retardation
Heart Rate, Fetal
Fetal Blood
Umbilical Arteries
Placenta
Fetuses
Umbilical Veins
Amino Acids
Oxygen
Lactic Acid
Lactates
Newborn Infant
Caesarean Section
Third Pregnancy Trimester
Regression Analysis
Blood Specimen Collection
Co-Publications
31
28
23
12
11
8
7
6
5
4
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