There are multiple definitions:

1. intraosseously(English)

   • also as i.o.
   • IV
   • Therapeutic approaches

2. inferior olive(English)

   • Anatomy, Brain (dys)function

3. infraorbital [nerve](English)

   • HRP, PHA-L, PO, PrV, TB, WGA
   • Neurology
   • https://doi.org…2/cne.903120302

4. intraoperative [revision](English)

   • NO, PO
   • Cardiology, Surgery
   • https://doi.org…cvs.2014.07.073

5. internal oblique(English)

   • EO
   • Sports medicine, Rehabilitation
   • https://doi.org…3/jsr.2019-0052

6. immuno-oncology(English)

   • the immune system is the hard-wired host defense mechanism against pathogens as well as cancer
   • CFDA, FDA, CAHON, NMPA
   • Immunology, Oncology
   • https://doi.org…3045-018-0684-3