There are multiple definitions:

1. adaptive servo-ventilation(English)

   • sufficiently improves periodic breathing
   • ACMV, AHI, APAP, OSAS
   • Sleep medicine, Respiratory system
   • https://doi.org…eep.2008.09.017

2. asunaprevir(English)

   • therapy for patients with chronic hepatitis C
   • CHC, QOL, SVR
   • Liver disease, Virology
   • https://doi.org…2/etm.2017.5488

3. aortic sinus of Valsalva(English)

   • a well-known source of atrial and ventricular tachycardias
   • AT, VT
   • Anatomy, Cardiology
   • https://doi.org…67.2011.02226.x

4. amplicon sequence variant(English)

   • BMI, CNS, DI, FFAR, fMRI, FWE, GI, GIP, GLP-1, HOMA-IR, iAUC, IGI, OFC, OGIS, OTU, RMR, SCFA, SMMT, T2DM, VAS
   • Metabolism, Insulin, Medical imaging, Brain (dys)function
   • https://doi.org…sci.2023.108478

5. average successive variability(English)

   • may refer to visit-to-visit variability of blood pressure and the risk of metabolic syndrome
   • DBP, BMI, FPG, JIS, MetS, TG, VVV, WC
   • Variability / oscillation, Hemodynamics, Metabolism
   • https://doi.org…55/2023/8156084

6. aortic stroke volume(English)

   • AR, EDV, EFc, LVEF, MSV, MVA, SV
   • Cardiology, Hemodynamics, Difference based metric
   • https://doi.org…331970005100704