| OCS | occipital condyle syndrome; Ondine's curse syndrome; open canalicular system; oral contraceptive ste... |
|---|---|
| OGS | oxygenic steroid |
| Pr | praseodymium; prednisolone; presbyopia; primary; prism; production rate [of steroid hormones]; prola... |
| SBP | schizobipolar; serotonin-binding protein; spontaneous bacterial peritonitis; steroid-binding plasma ... |
| SPAI | steroid protein activity index |