| PER | peak ejection rate; periodogram; protein efficiency ratio |
|---|---|
| per | perineal; periodicity, periodic |
| percus | percussion |
| Perf | perfusion or perfusionist |
| perf | perforation |
| PERG | pattern electroretinogram |
| PERI | Psychiatric Epidemiology Research Interview |
| periap | periapical |
| Perio | periodontics |
| PERK | prospective evaluation of radial keratotomy [protocol] |
| BPS | beats per second; Behavioral Pharmacological Society; biophysical profile score; bits per second; bo... |
|---|---|
| AAPCC | adjusted annual per capita cost; adjusted average per capita cost; American Association of Poison Co... |
| BPM | beats per minute; biperidyl mustard; breaths per minute; brompheniramine maleate |
| cpm | counts per minute; cycles per minute |
| cps | counts per second; cycles per second |