Clinical drug resistance linked to interconvertible phenotypic and functional states of tumor-propagating cells in multiple myeloma. by Chaidos, A, Barnes, C, Cowan, G, May, P, Melo, V, Hatjiharissi, E, Papaioannou, M, Harrington, H, Doolittle, H, Terpos, E, Dimopoulos, M, Abdalla, S, Yarranton, H, Naresh, K, Foroni, L, Reid, A, Rahemtulla, A, Stumpf, M, Roberts, I, Karadimitris, A