Elderberry oil-cake “Sambucus Ebulus” – natural immune stimulantAlbena Durakova, Adelina Vasileva, Velichka Yanakieva, Hristo Kalaydzhiev, Zhivka Goranova and Milena TemelkovaBIO Web Conf., 170 (2025) 01010DOI: https://doi.org/10.1051/bioconf/202517001010