There are multiple definitions:

1. atmospheric methane concentration(English)

   • SOC
   • Environment

2. age-matched control(English)

   • AGCC, HC
   • Clinical trials

3. 7-amino-4-methylcoumarin(English)

   • Clinical chemistry
   • https://www.sig…n&region=US

4. Albany Medical College(English)

   • in Albany NY (USA)
   • Hospital

5. Amsterdam Medisch Centrum(Dutch)

   • AFS
   • Hospital
   • https://www.amc.nl/web/home.htm

6. alumina matrix composite(English)

   • THA
   • Materials science, Orthopedics
   • https://doi.org…1999-015-4428-1

7. amoeboid microglial cell(English)

   • DAPT, LPS, NF-kappa-B, TNF-α, IL-1, IL-6, iNOS, M-CSF
   • Neuropathy, Brain (dys)function
   • https://doi.org….1002/jnr.22429
   • https://doi.org…1002/glia.20692