SEHN LHCHUA NMAYER J ET AL.: 'Obinutuzumab plus bendamustine versus bendamustine monotherapy in patients with rituximab-refractory indolent non-Hodgkin lymphoma (GADOLIN): a randomised, controlled, open-label, multicentre, phase 3 trial', THE LANCET ONCOLOGY, vol. 17, 2016, pages 1081 - 93, XP029663501, DOI: 10.1016/S1470-2045(16)30097-3