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 Medical Concepts
  Organisms
 Bacteria
 Proteobacteria
 Alphaproteobacteria
 Anaplasmataceae
 Bartonellaceae
 Beijerinckiaceae
 Bradyrhizobiaceae
 Brucellaceae
 Brucella
 Ochrobactrum
 Caulobacteraceae
 Holosporaceae
 Hyphomicrobiaceae
 Methylobacteriaceae
 Methylocystaceae
 Phyllobacteriaceae
 Rhodospirillales
 Rhizobiaceae
 Rhodobacteraceae
 Rickettsiaceae
 Sphingomonadaceae

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