Effects of demethylfruticuline A and fruticuline A from Salvia corrugata Vahl. on biofilm production in vitro by multiresistant strains of Staphylococcus aureus, Staphylococcus epidermidis and Enterococcus faecalis - Schito, AM; Piatti, G; Stauder, M; Bisio, A; Giacomelli, E; Romussi, G; Pruzzo, C (Int J Antimicrob Agents, 2011)