Dimopoulos MA, Palumbo A, Hajek R, Kropff M, Petrucci MT, Lewis P, Millar S, Zhang J, Mei J, Delforge M. Factors that influence health-related quality of life in newly diagnosed patients with multiple myeloma aged ? 65 years treated with melphalan, prednisone and lenalidomide followed by lenalidomide maintenance: Results of a randomized trial. Leukemia and Lymphoma [Internet]. 2014;55(7):1489 - 1497.