There are multiple definitions:

1. nerve growth factor(English)

   • Abbreviation may be used in Am. Soc. Physiol. journals without definition.
   • EGF, FGF, LNGFR, PDGF, NGFI-A, a2M
   • Physiology, Cell biology
   • https://doi.org….1002/jcp.24266

2. neurotrophic growth factor(English)

   • studied in embryonic stem cell research
   • ESC, CA125, CTSL, Dkk1, HBEGF, HFpEF, HFrEF, IL-6, IL-6R, IL-8, PlGF, TNFRSF
   • Embryology /reproduction, Stem cell, Cardiology, Biomarker
   • https://doi.org…70615-7/50034-2
   • https://doi.org….1002/ejhf.3156