| EFC | elastin fragment concentration; endogenous fecal calcium; ephemeral fever of cattle |
|---|---|
| ELN | elastin; electronic noise |
| MERRF Syndrome | Myoclonic Epilepsy & Ragged Red Fibers Syndrome |
| DF | decapacitation factor; decontamination factor; deferoxamine; deficiency factor; defined flora [anima... |
| f/cc | fibers per cubic centimeter of air |