<qa>  What must have received at least 1-4 treatment regimens for NHL?2. Patients with de novo DLBCL must have received 1-3 treatment regimens for DLBCL. Patients with follicular grade 3 lymphoma must have received 1-3 treatment regimens for follicular lymphoma any grade. Patients with DLBCL transformed from indolent lymphoma must have received at least 1-4 treatment regimens for NHL. 