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Isobologram analysis.
Notes: (A) Synergism between NDV and Rtx at a low dose and antagonism effects at high dose on a CD20-positive plasmacytoma cell line. (B) The effect on rat embryonic cells was antagonistic at all doses used.
Abbreviations: NDV, Newcastle disease virus; Rtx, rituximab; PFUs, plaque-forming units; CI, combination index.
