There are multiple definitions:

1. administrator on call(English)

   • Specialist / expert

2. attributable oropharyngeal cancer(English)

   • HPV
   • ENT, Oncology, Surveillance
   • https://doi.org…28/jcm.01403-22

3. age of first parent concern(English)

   • AOD, ASD
   • Pediatrics, Psychology, Diagnostics
   • https://doi.org…155/2011/874619