There are multiple definitions:

1. hydrofluoroalkane(English)

   • CFC, DPI, MDI, MMAD

2. Heart Failure Association(English)

   • ESC, PEFF, HFA-PEFF
   • Cardiology, Organizations (scientific)

3. Health-for-all by the year 2000(English)

   • a WHO program
   • WHO

4. high-functioning autism(English)

   • a term used to refer to a subset of individuals on the autism spectrum who have cognitive and/or linguistic abilities that are in the average to above average range for their age
   • ASD, AQ
   • Psychology
   • https://doi.org…4419-1698-3_344

5. height for age(English)

   • BH, LAZ
   • Pediatrics, Aging
   • https://doi.org…9/jogh.13.04112