400 IMMUNOMODULATORY ACTIVITY OF ECHINACEA PURPUREA EXTRACTS PREPARED IN A SERIES OF ETHANOL:WATER MENSTRUUMS ON HUMAN MONOCYTE/MACROPHAGE CELL LINES. (1st January 2004) - Farcas, A.; Hodgson, A.; Finnell, J. S.; Fry, J.; Cech, N.; Sivam, G.; Wenner, C. A.