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Dumler, J. S., Barbet, A. F., Bekker, C. P. J., Dasch, G. A., Palmer, G. H., Ray, S. C., Rikihisa, Y., Rurangirwa, F. R. (2001). Reorganization of genera in the families <i>Rickettsiaceae</i> and <i>Anaplasmataceae</i> in the order <i>Rickettsiales</i>: unification of some species of <i>Ehrlichia</i> with <i>Anaplasma</i>, <i>Cowdria</i> with <i>Ehrlichia</i> and <i>Ehrlichia</i> with <i>Neorickettsia</i>, description of six new species combinations and designation of <i>Ehrlichia equi</i> and 'HGE agent' as subjective synonyms of <i>Ehrlichia phagocytophila</i>. <i> Int.J.Syst.Evol.Microbiol. </i><b> 51 </b>: 2145-2165 .
Dumler, J. S., Barbet, A. F., Bekker, C. P. J., Dasch, G. A., Palmer, G. H., Ray, S. C., Rikihisa, Y., Rurangirwa, F. R. (2001). Reorganization of genera in the families <i>Rickettsiaceae</i> and <i>Anaplasmataceae</i> in the order <i>Rickettsiales</i>: unification of some species of <i>Ehrlichia</i> with <i>Anaplasma</i>, <i>Cowdria</i> with <i>Ehrlichia</i> and <i>Ehrlichia</i> with <i>Neorickettsia</i>, description of six new species combinations and designation of <i>Ehrlichia equi</i> and 'HGE agent' as subjective synonyms of <i>Ehrlichia phagocytophila</i>. <i> Int.J.Syst.Evol.Microbiol. </i><b> 51 </b>: 2145-2165 .