Timothy J. Johnson, Subhashinie Kariyawasam, Yvonne Wannemuehler, Paul Mangiamele, Sara J. Johnson, Curt Doetkott, Jerod A. Skyberg, Aaron M. Lynne, James R. Johnson, Lisa K. Nolan
J Bacteriol. 2007 Apr; 189(8): 3228–3236. Published online 2007 Feb 9. doi: 10.1128/JB.01726-06