Dietary supplements: a great menace of our time or golden remedy? A cross-sectional study among school-aged children - Krawiec, Marta; Chadzynska, Julita; Raciborski, Filip; Kraj, Grazyna; Klak, Anna; Samolinski, Boleslaw; Kulus, Marek (Advances in Dermatology and Allergology/Postępy Dermatologii i Alergologii, 2019)