There are multiple definitions:

1. magnetocardiogram(English)

   • a technique to measure the magnetic fields produced by electrical currents in the heart using extremely sensitive devices
   • BCE, fMCG, SQUID
   • Magnetism, Medical imaging, Cardiology
   • https://doi.org…746-026-02819-8
   • https://doi.org….1063/5.0201950

2. middle cervical ganglion(English)

   • LMCG
   • Neurons