There are multiple definitions:

1. nasal airflow(English)

   • FOT, PSG, RIP
   • ENT, Respiratory system

2. nonablative fractional [laser](English)

   • the combination with topical minoxidil may be a good alternative therapy for alopecia areata patients, including alopecia totalis and alopecia universalis, without systemic and local side effects
   • AA
   • Laser technique, Dermatology, Therapeutic approaches
   • https://doi.org…1111/jocd.12883