| APR | abdominoperineal resection; absolute proximal reabsorption; acute phase reaction or reactant; amebic... |
|---|---|
| PMA | index of prevalence and severity of gingivitis, where P = papillary gingiva, M = marginal gingiva, a... |
| POR | patient-oriented research; physician of record; postocclusive oscillatory response; prevalence odds ... |