There are multiple definitions:

1. neutral vertebra(English)

   • EV, LIV, SV
   • Spine (or spinal cord), Surgery
   • https://doi.org…0586-009-0990-0

2. native valve(English)

   • NV-TAVI, TAVI, ViV, ViV-TAVI
   • Cardiology
   • https://doi.org…ard.2022.02.028

3. norovirus(English)

   • AGR, MNV
   • Virology
   • https://doi.org….3390/v14102228

4. nonsarcopenia/visceral [obesity](English)

   • ASM, BIA, BMI, NAFLD, NN, SMI, SN, SV, T2DM, VFA
   • Adiposity, Diabetes
   • https://doi.org…55/2022/2229139

5. neovascularization(English)

   • CAB, PPARγ
   • Vessel properties, Injury
   • https://doi.org…/ijmm.2016.2699