| NVL | no visible lesion |
|---|---|
| PNL | peripheral nerve lesion; polymorphonuclear neutrophilic leukocyte |
| SOL | solution; space-occupying lesion |
| SPL | skin potential level; sound pressure level; splanchnic; spontaneous lesion; staphylococcal phage lys... |
| UMNL | upper motor neuron lesion |