| FOP | fibrodysplasia ossificans progressiva; forensic pathology |
|---|---|
| POG | pediatric oncology group; polymyositis ossificans generalisata |
| POP | diphosphate group; pain on palpation; paroxypropione; persistent occipitoposterior [fetal position];... |
| POT | periostitis ossificans toxica; postoperative treatment |