SEARCH Articles Figures Tables Drug resistance tetracyclines Efflux proteins tetracycline resistance Resistance to tetracyclines Staphylococcus aureus tetracycline-resistant TetA, tetracycline resistance Tetracyclin Tetracycline resistance genes Tetracycline resistant genes Tetracycline-resistant Tetracycline-resistant Tetracycline-resistant bacteria Tetracyclines bacterial resistance Tetracyclines resistance mechanisms