Antibacterial activity of leave extracts of Nymphaea lotus (Nymphaeaceae) on methicillin resistant Staphylococcus aureus (MRSA) and vancomycin resistant Staphylococcus aureus (VRSA) isolated from clinical samples - Akinjogunla, O J; Yah, C S; Eghafona, N O; Ogbemudia, F O (Ann Biol Res, 2010)