| ECPO | enteric cytopathic porcine orphan [virus] |
|---|---|
| ECRO | enteric cytopathogenic rodent orphan [virus] |
| ECSO | enteric cytopathic swine orphan [virus] |
| ECT | electroconvulsive therapy; emission computed tomography; enteric coated tablet; euglobulin clot test... |
| ERC | endoscopic retrograde cholangiography; enteric cytopathic human orphan-rhino-coryza [virus]; erythro... |