| rect | rectal; rectification, rectified; rectum; rectus [muscle] |
|---|---|
| ZPA | zone of polarizing activity |
| CEM | computerized electroencephalographic map; conventional transmission electron microscope |
| EM | early memory; ejection murmur; electromagnetic; electron micrograph; electron microscopy, electron m... |
| E/M | electron microscope, electron microscopy; evaluation and management |