All

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 C02 Virus Diseases D014777 +
  C02.440 Hepatitis, Viral, Human D006525 +
   C02.440.420 Hepatitis A D006506 
 C02 Virus Diseases D014777 +
  C02.782 RNA Virus Infections D012327 +
   C02.782.687 Picornaviridae Infections D010850 +
    C02.782.687.359 Enterovirus Infections D004769 +
     C02.782.687.359.500 Hepatitis A D006506 
 C06 Digestive System Diseases D004066 +
  C06.552 Liver Diseases D008107 +
   C06.552.380 Hepatitis D006505 +
    C06.552.380.705 Hepatitis, Viral, Human D006525 +
     C06.552.380.705.422 Hepatitis A D006506