| EOJ | extrahepatic obstructive jaundice |
|---|---|
| HOCM | high-osmolar contrast medium; hypertrophic obstructive cardiomyopathy |
| OA | obstructive apnea; occipital artery; occipito-anterior; occiput anterior; octanoic acid; ocular albi... |
| OAD | obstructive airway disease; organic anionic dye |
| OH | hydroxycorticosteroid; obstructive hypopnea; occipital horn; occupational health; occupational histo... |