There are multiple definitions:

1. pedicle subtraction osteotomy(English)

   • a spinal realignment technique that may be used to correct sagittal spinal imbalance
   • mPSO, PT, SVA
   • Spine (or spinal cord), Surgery
   • https://doi.org…10.9.SPINE10129
   • https://doi.org…0381-015-2738-y

2. psoriasis(English)

   • also denoted as PsO
   • ADD, AS, ASAS, axSpA, CID, CZP, EDD, Fc, FcRn, GPP, IBD, IFX, IMID, PSA, RA, SmPC, SpA, TNF, WoCBA
   • Dermatology, Autoimmunity, Woman /female, Pregnancy, Pharmacology / pharmaceutics
   • https://doi.org…jwd.2019.04.021
   • https://doi.org…aut.2014.01.015
   • https://doi.org….1111/exd.15067