| POA | pancreatic oncofetal antigen; phalangeal osteoarthritis; preoptic area; primary optic atrophy |
|---|---|
| POA-HA | preoptic anterior hypothalamic area |
| PVA | Paralyzed Veterans of America; peripheral venous alimentation; polyvinyl acetate; polyvinyl alcohol;... |
| REA | radiation emergency area; radioenzymatic assay; renal anastomosis; right ear advantage |
| RJA | regurgitant jet area |