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

7. inferior oblique [muscle](English)

   • EMG, SCM, SOL, TRP, VEMP, vHIT, SPL, VOR, VSR
   • Reflex, ENT, Audiology, Electrophysiology
   • https://doi.org…2/jn.00626.2015

8. intestinal obstruction(English)

   • a common surgical acute abdominal condition that places a significant burden on modern health systems
   • APC, GBD, SDI
   • Gastroenterology, Pathology
   • https://doi.org…384-023-04522-6

9. iron overload(English)

   • in the heart is a life-threatening complication in transfusion-dependent patients with thalassaemia major and to a lesser extent in sickle cell disease
   • BT, DFO, LPI, NTBI, SCD, TM
   • Hematology, Cardiology, Risk factor
   • https://doi.org…09.2009.01355.x