| PBW | posterior bite wing |
|---|---|
| A>B | air greater than bone [conduction] |
| GT | gait training; galactosyl transferase; gastrostomy; generation time; genetic therapy; gingiva treatm... |
| Sp | the most posterior point on the posterior contour of the sella turcica; species; specific; specimen;... |
| SpS | sphenoid sinus |