Trends in folic acid supplementation during pregnancy – the effect on allergy development in children - Socha-Banasiak, Anna; Kamer, Barbara; Pacześ, Krzysztof; Ślusarek, Barbara; Pawlikowski, Bartosz; Czkwianianc, Elżbieta (Advances in Dermatology and Allergology/Postępy Dermatologii i Alergologii, 2018)