1. Pathogenicity Islands: Bacterial Evolution in Quantum Leaps
Eduardo A Groisman, Howard Ochman 
Cell 
Volume 87, Issue 5, Pages (November 1996)
DOI: /S (00)

2. Figure 1
Location of Selected Pathogenicity Islands and Phages of Gram-Negative Bacteria
Chromosomes and pathogenicity islands are depicted as blue lines and black triangles, respectively, and are not drawn to scale. The presence of repeated sequences at the site of insertion, which is shown below the island, is indicated by short yellow lines.
Cell  , DOI: ( /S (00) )