Authors: Bärbel Stecher; Riccardo Robbiani; Alan W Walker; Astrid M Westendorf; Manja Barthel; Marcus Kremer; Samuel Chaffron; Andrew J Macpherson; Jan Buer; Julian Parkhill; Gordon Dougan; Christian von Mering; Wolf-Dietrich Hardt Journal: PLoS Biol Date: 2007-10 Impact factor: 8.029