| BTC | basal temperature chart; body temperature chart |
|---|---|
| AERP | antegrade effective refractory period; atrial effective refractory period |
| ESP | early systolic paradox; echo spacing; effective sensory projection; effective systolic pressure; end... |
| MEC | median effective concentration; middle ear canal; middle ear cell; minimum effective concentration |
| AOC | abridged ocular chart; amyloxycarbonyl; anodal opening contraction; area of concern |