All

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 E03 Anesthesia and Analgesia D000760 +
  E03.155 Anesthesia D000758 +
   E03.155.141 Anesthesia, Dental D000766 +
     E03.155.141.481 Hypnosis, Dental D006992 
 E06 Dentistry D003813 +
  E06.045 Anesthesia, Dental D000766 +
    E06.045.481 Hypnosis, Dental D006992