Sulphoevernan, a polyanionic polysaccharide, and the Narcissus lectin potently inhibit human immunodeficiency virus infection by binding to viral envelope glycoprotein - Weiler,B.E.; Schröder,H.C.; Stefanovich,V.; Stewart,D.; Forrest,J.MS.; Allen,L.B.; Bowden,B.J.; Kreuter,M.H.; Voth,R.; Müller,W.EG. (J Gen Virol, 1990)