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 Medical Concepts
  Organisms
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 Alphaproteobacteria
 Anaplasmataceae
 Bartonellaceae
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 Brucellaceae
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 Holosporaceae
 Hyphomicrobiaceae
 Methylobacteriaceae
 Methylocystaceae
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 Rhodospirillales
 Rhizobiaceae
 Rhodobacteraceae
 Rickettsiaceae
 Sphingomonadaceae
 Betaproteobacteria
 Deltaproteobacteria
 Epsilonproteobacteria
 Gammaproteobacteria

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