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Maternal Vitamin D Insufficiency Early in Pregnancy Is Associated with Increased Risk of Preterm Birth in Ethnic Minority Women in Canada

Pregnancy NutritionEthnic Minority WomenReproductive HealthGynecologyMaternal HealthPregnancyPreterm BirthPrenatal CareMaternal-fetal MedicineMaternal NutritionIncreased RiskPublic HealthMedicineWomen's HealthHigh-risk Pregnancy