Any member of a family of nitrogen-containing organic compounds that is derived, either in principle or in practice, from ammonia (NH3).
www.britannica.
The 1910 Discovery That Was Lost in Translation
Urinary MMA is a Superior Test For Detecting B12 Deficiency, and for Good Reason.
The MMA Test Teaches a Lot About Why B12 is So Important for Energy
First Study to Find a Link
The Discovery That Launched the Search for Treatment
