Effects of α-Hederin, a Saponin Extracted from Hedera helix, on Cells Cultured in vitro - Danloy, S; Quetin-Leclercq, J; Coucke, P; De Pauw-Gillet, M -Cl; Elias, R; Balansard, G; Angenot, L; Bassleer, R (Planta Medica, 1994)