There are multiple definitions:

1. Ebola hemorrhagic fever(English)

   • Virology

2. extended-high frequencies(English)

   • ABR, ANF, CAP, DPOAE, EEG, HHL, HL, IHC, LNE, OHC, TE, TEA, TIP
   • Audiology, ENT
   • https://doi.org…res.2018.06.003

3. extensively hydrolyzed formula(English)

   • may refer to infant formulas containing hydrolysed protein for prevention of allergic disease
   • CMA, CMF, GRADE, FE, PHF
   • Allergy, Nutrition, Pediatrics
   • https://doi.org…8.CD003664.pub5