Synergistic induction of tumor necrosis factor alpha by bacterial lipopolysaccharide and lipoteichoic acid in combination with polytetrafluoroethylene particles in a murine macrophage cell line RAW 264.7 - Chapekar,M.S.; Zaremba,T.G.; Kuester,R.K.; Hitchins,V.M. (Journal of Biomedical Materials Research, 1996)