There are multiple definitions:

1. polygon of confluence(English)

   • used to calculate the diameter of each bifurcation component
   • CAAS, DCB, DES, DICOM, DMV, FFR, IVUS, LLL, MLD, MRM, MSCT, OCT, PCI, PMV, POB, QCA, RVD, ULMCA
   • Coronary circulation, Medical imaging, Atherosclerosis /atherogenic
   • https://doi.org…vm.2024.1468888

2. point-of-care(English)

   • POCT
   • Clinical chemistry

3. progestin-only contraceptive(English)

   • COC, CHC, DMPA
   • Gynecology, Woman /female
   • https://doi.org…jama.2020.11935

4. products of conception(English)

   • NK-1R expression shows no notable differences among different cases of miscarriages regardless of the age of females and the gestational age at which the event occurred
   • NK-1R
   • Obstetrics, Pregnancy, Histochemistry, Pathology
   • https://doi.org…hys.2020.554766

5. persistent outward current(English)

   • co-regulates the excitability of spinal motoneurons
   • ALS, MN, PIC, Sod1
   • Electrophysiology, Myocyte / muscle, Spine (or spinal cord)
   • https://doi.org/10.1113/JP286032