SEARCH Articles Figures Tables Blood brain barrier drug efflux transport systems role Blood-brain barrier drug efflux system Cation efflux system Cellular efflux system Colon efflux systems Cyclosporin efflux system Diversity of Bacterial MDR Efflux Systems Efflux systems antibiotic resistance Efflux transport system Intestine efflux systems Methotrexate efflux system Transcellular absorption efflux systems