Sturm, A., Rilling, K., Baumgart, D. C., Gargas, K., Abou-Ghazale, T., Raupach, B., et al. (2005). Escherichia coli Nissle 1917 distinctively modulates T-cell cycling and expansion via toll-like receptor 2 signaling. Infection and Immunity, 73(3), 1452-1465.