Reference:
Champion MD, Zeng Q, Nix EB, Nano FE, Keim P, Kodira CD, Borowsky M, Young S, Koehrsen M, Engels R, Pearson M, Howarth C, Larson L, White J, Alvarado L, Forsman M, Bearden SW, Sjöstedt A, Titball R, Michell SL, Birren B, Galagan J. Comparative genomic characterization of Francisella tularensis strains belonging to low and high virulence subspecies. PLoS Pathogens 2009;5(5): e1000459.