| PNdb | perceived noise decibel |
|---|---|
| S/N | signal/noise [ratio] |
| SNR | selective nerve root [block]; signal-to-noise ratio; substantia nigra zona reticulata; supernumerary... |
| LOC | Loss Of Consciousness |
| ABCDES | abnormal alignment, bones-periarticular osteoporosis, cartilage-joint space loss, deformities, margi... |