| OX | optic chiasma; oxacillin; oxalate; oxide; orthopedic examination; oxytocin |
|---|---|
| CI-S | calculus index, simplified |
| CR | calculation rate; calculus removed; calorie-restricted; cardiac rehabilitation; cardiac resuscitatio... |
| CSI | calculus surface index; cancer serum index; cavernous sinus infiltration; cervical spine injury; che... |