There are multiple definitions:

1. American Physiological Society(English)

   • ACE, CAC, COPC, CUR, IOSP, IPC, MPLO, URM, FEPS
   • Physiology, Organizations (research)
   • https://www.phy…logy.org/?SSO=Y

2. antiphospholipid [antibody] syndrome(English)

   • autoimmune disorder that causes an increased risk of blood clots; also as aPS, APA, Hughes syndrome
   • DVT, RPL, aPL, aPLS, SNAPS
   • Thrombocyte /thrombosis, Autoimmunity, Coronary circulation
   • https://www.nhs…lipid-syndrome/
   • https://doi.org…/s-0039-1697982

3. adenosine 5'-phosphosulfate(English)

   • Biochemistry

4. acute pain service(English)

   • Pain

5. acute procedural success(English)

   • MVR

6. autoimmune polyglandular syndrome(English)

   • APS-1, AIT, ACA, AD, AGS, IPA, P450, 21-OH
   • Autoimmunity, Gland(ular)
   • https://doi.org…em.81.5.8626850

7. American Pain Society(English)

   • was a professional membership organization and a national chapter of the International Association for the Study of Pain. In June 2019, the APS was forced to close amid allegations that it colluded with pharmaceutical companies producing opioids. See also AAPM
   • AAPM, AAPT
   • Pain, Organizations (documentation)
   • https://en.wiki…an_Pain_Society

8. artificial pancreas system(English)

   • T1DM, CGM
   • Pancreas, Insulin, Bioengineering, Diabetes
   • https://doi.org…EMB.2009.935711

9. axial plaque stress(English)

   • CAD, FFR
   • Atherosclerosis /atherogenic, Hemodynamics
   • https://doi.org…acc.2021.06.019

10. autologous protein solution(English)

    • ACS, IL-1β, OA, IL-1Ra
    • Hematology, Veterinary medicine
    • https://doi.org…ets.2021.602978

11. attenuated psychosis syndrome(English)

    • diagnosis is defined by the presence of delusions, hallucinations, or disorganized speech in attenuated form, but with sufficient severity and frequency to warrant clinical attention
    • APA, APSS, BLIPS, CAARMS, DSM, GRD, PRS, SIPS
    • Psychosis, Psychiatry, Risk factor
    • https://doi.org…syt.2020.568982