There are multiple definitions:

1. System Usability Scale(English)

   • approach of conducting a usability study to collect target users’ feedback with a usability questionnaire
   • MAUQ, PSSUQ, VALENTINE
   • Questionnaire, Mobile health, Scoring systems/scales
   • https://doi.org…g/10.2196/11500
   • https://doi.org…JAHA.123.030807

2. socially unacceptable snoring(English)

   • AHI, OSAS, RFTB
   • Sleep medicine
   • https://doi.org…0405-006-0115-x

3. sustentacular [cell](English)

   • contains ACE2 and TMPRSS2
   • ACE2, COVID-19, EBG, OB, OC, OE, OF, OR, OS, OSN
   • ENT
   • https://doi.org…455613211048998

4. Sistema Único de Saude(Portuguese)

   • [Brazil's] National Public Healthcare System
   • Health care
   • https://conecte…ude.gov.br/home

5. suspect(English)

   • refers to bone cortices in radiographs
   • NU, RUST
   • Medical imaging, Orthopedics, Impedance/bioimpedance, Scoring systems/scales, Monitoring, Skeleton and bone (formation)
   • https://doi.org…55/2022/3226440