Nuovo soggettario BNCF Biblioteca Nazionale Centrale Firenze Ministero della Cultura
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            • • • • • • • • Organismi
           • • • • • • • [Organismi diversi da vegetali, animali, umani]
          • • • • • • Procarioti
         • • • • • Batteri
        • • • • Proteobacteria
       • • • Proteobacteria beta
      • • Neisseriales
     • Neisseriaceae
    ►Neisseria
         •  Meningococco
     •  Neisseria gonorrhoeae