| FOS | fiberoptic sigmoidoscopy; fractional osteoid surface |
|---|---|
| OV | oculovestibular; office visit; osteoid volume; outflow volume; ovalbumin; ovary; overventilation; ov... |
| ABCDES | abnormal alignment, bones-periarticular osteoporosis, cartilage-joint space loss, deformities, margi... |
| TCID | tissue culture infective dose; tissue culture inoculated dose |
| TCID50 | median tissue culture infective dose; 50% tissue culture infective dose |