Maruszczak P, Woźniak K, Woźniak M, Doniec Z. The use of the elderberry extracts in the treatment of the respiratory infections. J EBM [Internet]. 2022Mar.31 [cited 2024Jul.3];15(1(54):46-9. Available from: https://journalsmededu.pl/index.php/jebm/article/view/1838