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Pregnancy
Pregnancy, Multiple
Gestational Age
Abruptio Placentae
Premature Birth
Newborn Infant
Cervix Uteri
Finland
Risk Factors
Caesarean Section
Pregnancy Outcomes
Second Pregnancy Trimester
Retrospective Studies
Case Control Studies
Labor, Induced
Prenatal Diagnosis
Oxytocics
Nonsteroidal Abortifacient Agents
Insulin-Like Growth Factor Binding Protein 1
Smoking
Co-Publications
15
13
10
9
5
4
3
2
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