Vitamin A and D intake in pregnancy, infant supplementation, andasthma development: the Norwegian Mother and Child CohortChristine L Parr,1,4 Maria C Magnus,1,5,6 Øystein Karlstad,1 Kristin Holvik,1 Nicolai A Lund-Blix,1,7 Margareta Haugen,2Christian M Page,1 Per...
