Related Subjects
Cohort Studies
Europe
Folic acid
Iron
Pregnancy
Pregnancy recommendations
Vitamin D
Adult
Allergens
Diet
Environmental Exposure
Family
Female
Food Hypersensitivity
Food Preferences
Humans
Hypersensitivity
Infant
Male
Mataræði
Meðganga
Newborn
Pregnancy Complications
Prevalence
Questionnaires
Risk Factors