| ASPEN | American Society for Parenteral and Enteral Nutrition |
|---|---|
| CEN | Certificate for Emergency Nursing; Comite European de Normalisation (standards); continuous enteral ... |
| EA | early antigen; educational age; egg albumin; electric affinity; electrical activity; electroacupunct... |
| EN | endoscopy; enrolled nurse; enteral nutrition; epidemic nephritis; erythema nodosum |
| ENS | enteral nutritional support; ethylnorsuprarenin |