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Pregnancy
Newborn Infant
Poland
Fetal Erythroblastosis
Rh Isoimmunization
Pregnancy Complications
Premature Obstetric Labor
Endometriosis
Female Infertility
Pregnancy Complications, Hematologic
Ovarian Neoplasms
Risk Factors
Caesarean Section
Pregnancy Outcomes
Time Factors
Intrauterine Blood Transfusion
Ultrasonography
Oestradiol
Follicle Stimulating Hormone
Fetal Blood
Co-Publications
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