TNF and non-Hodgkin lymphoma: SCF = supercritical fluid; 2ME2 = 2-methoxyestradiol; NCD = NanoCrystal® colloidal dispersion; NHL = non-Hodgkin’s lymphoma; SPIONS = superparamagnetic iron oxide nanoparticle; HfO2 = hafnium oxide; SBRT = stereotactic body radiation therapy; TNF = tumor necrosis factor; PEG = poly (ethylene glycol).