There are multiple definitions:

1. occipital face area(English)

   • functional localizers are particularly prevalent in functional magnetic resonance imaging studies concerning face processing
   • FFA, FIR, fMRI
   • Medical imaging
   • https://doi.org…al.pone.0214997

2. opioid free anesthesia(English)

   • OBA, OCA
   • Anesthesiology/analgesia, Pain
   • https://doi.org…ane.2023.111215
   • https://doi.org…19.1.FOCUS18645