| CR1 | complement receptor type 1 |
|---|---|
| CRN | complement requiring neutralization |
| EAC | Ehrlich ascites carcinoma; electroacupuncture; epithelioma adenoides cysticum; erythema annulare cen... |
| ECFC | eosinophilic chemotactic factor complement |
| Fabc | fragment, antigen and complement binding [of immunoglobulins] |