There are multiple definitions:

1. Freiburg Personality Inventory(English)

   • PMH
   • Mental health
   • https://doi.org…0359-016-0111-x

2. Fabry-Perot interferometer(English)

   • PAT
   • Bioengineering, Medical imaging
   • https://doi.org…ME.2013.2283507

3. fasting plasma insulin(English)

   • BMI, FPG, FPIR, FPIS, HDL-C, MetS, SI
   • Insulin, Metabolism
   • https://doi.org…155/2015/675245

4. Fertility Problem Inventory(English)

   • ALE
   • Embryology /reproduction, Pregnancy
   • https://doi.org…idw.2010.02.007

5. functional preload index(English)

   • a measure of the relationship between a relatively preload–independent index of shortening (the mean velocity of shortening [VCFc]) and a preload dependent index as reflected by shortening fraction
   • AR, BSA, ESV, LVEF, SF, VCF, VCFc
   • Cardiology, Medical imaging
   • https://doi.org…cmg.2011.12.021