Chemical characterization and biological activity of Chaga (Inonotus obliquus), a medicinal “mushroom” - Glamočlija, J; Ćirić, A; Nikolić, M; Fernandes, Â; Barros, L; Calhelha, R C; Ferreira, I C; Soković, M; van Griensven, L J (J Ethnopharmacol, 2015)