Cytotoxicity of four Aframomum species (A. arundinaceum, A. alboviolaceum, A. kayserianum and A. polyanthum) towards multi-factorial drug resistant cancer cell lines. - Kuete V; Ango PY; Yeboah SO; Mbaveng AT; Mapitse R; Kapche GD; Ngadjui BT; Efferth T (BMC complementary and alternative medicine, 2014)