A genetic selection for Mycobacterium smegmatis mutants tolerant to killing by sodium citrate defines a combined role for cation homeostasis and osmotic stress in cell death oleh John T. Williams, Jacob J. Baker, Huiqing Zheng, Shelby J. Dechow, Jared Fallon, Megan Murto, Veronica J. Albrecht, Haleigh N. Gilliland, Andrew J. Olive, Robert B. Abramovitch