There are multiple definitions:

1. sodium dodecyl sulfate(English)

   • Abbreviation may be used in Am. Soc. Physiol. journals without definition.
   • SDS-PAGE
   • Physiology

2. self-rating depression scale(English)

   • scores are classified as normal (<50), mild depression (50 to 59), moderate to marked major depression (60 to 69), and severe to extreme major depression (>70)
   • 6MWT, ESCA, HAPA, SAS
   • Depression, Scoring systems/scales, Psychology
   • https://integra…ssion_Scale.pdf

3. Sheehan disabilities scale(English)

   • Disability, Scoring systems/scales

4. standard deviation score(English)

   • Statistics, Scoring systems/scales
   • https://dx.doi.…net-2014-102979

5. summed difference score(English)

   • Statistics, Scoring systems/scales

6. salidroside(English)

   • active compound of Rhodiola rosea L. extract with anxiolytic, antidepressive, antistress, and adaptogenic properties
   • CPP, RHO
   • Alternative medicine, Anxiety/fear, Depression
   • https://doi.org…0213-013-3351-y

7. self-directed study(English)

   • CAL
   • Education
   • https://doi.org/10.1002/ase.1549

8. Severity of Dependence Scale(English)

   • SDQ
   • Scoring systems/scales, Psychology
   • https://doi.org…034-021-00437-8

9. suspicious depressive symptom(English)

   • PDPI, MDS, NDS, PPD
   • Depression, Pregnancy
   • https://doi.org…psyt.2019.00780