We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleThe opcA and (psi)opcB regions in Neisseria: genes, pseudogenes, deletions, insertion elements and DNA islands.AuthorsZhu P; Morelli G; Achtman MPublicationMolecular microbiology, 1999, Vol 33, Issue 3, p635ISSN0950-382xPublication typearticleDOI10.1046/j.1365-2958.1999.01514.x