Isolation of cytotoxic compounds from the underground parts of Valeriana sisymbriifolia Vahl. through activity-guided fractionation - Erdoğan, M; Aru, B; Yılmaz, ŞT; Yeşilada, E; Yanıkkaya Demirel, G; Kırmızıbekmez, H (Planta Medica, 2021)