| EOA | effective orifice area; erosive osteoarthritis; esophageal obturator airway; examination, opinion, a... |
|---|---|
| OI | obturator internus; occasional insomnia; opportunistic infection; opsonic index; orgasmic impairment... |
| CSN | cardiac sympathetic nerve; carotid sinus nerve |
| NE | national emergency; necrotic enteritis; necrotizing enterocolitis; nephropathia epidemica; nerve end... |
| NRI | nerve root involvement; nerve root irritation; nonrespiratory infection |