| CNE | chief nurse executive; chronic nervous exhaustion; concentric needle electrode |
|---|---|
| COO | chief operating officer; cost of ownership [analysis] |
| COS | cheiro-oral syndrome; chief of staff; Clinical Orthopaedic Society; clinically observed seizures |
| CR | calculation rate; calculus removed; calorie-restricted; cardiac rehabilitation; cardiac resuscitatio... |
| CS | calf serum; campomelic syndrome; carcinoid syndrome; cardiogenic shock; caries-susceptible; carotid ... |