| ETK | erythrocyte transketolase |
|---|---|
| FEC | forced expiratory capacity; free erythrocyte coproporphyrin; freestanding emergency center; Friend e... |
| FECP | free erythrocyte coproporphyrin |
| HEA | hexone-extracted acetone; human erythrocyte antigen |
| HEAT | human erythrocyte agglutination test |