| OS | left eye [Lat. oculus sinister]; occipitosacral; occupational safety; office surgery; Omenn syndrome... |
|---|---|
| CASS | cataract-alopecia-sclerodactyly syndrome; Coronary Artery Surgery Study |
| Phaco | lens phacoemulsification [ophthalmic cataract surgery] |
| ABS | abdominal surgery; acute brain syndrome; Adaptive Behavior Scale; admitting blood sugar; adult bovin... |
| CAS | calcarine sulcus; calcific aortic stenosis; Cancer Attitude Survey; carbohydrate-active steroid; car... |