There are multiple definitions:

1. National Fibromyalgia Association(English)

   • Chronic fatigue syndrome, Organizations (documentation)

2. Neuroform Atlas(English)

   • stent for wide-necked cerebral aneurysms
   • mRS
   • Brain (dys)function, Vascular disease
   • https://doi.org…598-023-40725-1

3. non-functioning adenoma(English)

   • ALD, APA, CPA, DAB2, NFA, ZG
   • Gland(ular), Oncology
   • https://doi.org…5/s-0043-100935