There are multiple definitions:

1. orbitofrontal cortex(English)

   • ACC, ATL, BG, IFG, PMC, STG, TPJ, fMRI, FWE, GI, GIP, GLP-1, HOMA-IR, iAUC, IGI, OFC, OGIS, OTU, RMR
   • Anatomy, Brain (dys)function, Metabolism, Insulin
   • https://doi.org…0415-018-8762-6
   • https://doi.org…sci.2023.108478

2. oto-facial-cervical [syndrome](English)

   • BOR
   • Neuropathy

3. occipital frontal [head] circumference(English)

   • is measured over the most prominent part on the back of the head (occiput) and just above the eyebrows (supraorbital ridges). This can be translated to mean the largest circumference of the head
   • Neonatal situation
   • https://depts.washington.edu

4. oral food challenge(English)

   • GI food allergies as well as gluten-related disorders (celiac disease, wheat allergy, non-celiac gluten sensitivity), visceral hypersensitivity linked with functional abdominal pain, and dysautonomia linked with GI dysmotility and gastroesophageal reflux. Dysregulation of the gut microbiome has also been shown to be involved in modulating GI functions with the ability to affect intestinal permeability, mucosal immune function, and intestinal motility and sensitivity. Metabolic activity of the microbiome and dietary components are currently suspected to be associated with alterations in behavior and cognition also in patients with other neurodegenerative diseases
   • ASD, CFGF, GI, WA
   • Microbiome, Allergy, Nutrition, Behavior(al science)
   • https://doi.org…147/PHMT.S85717