137654 EF electro-Fenton 373 137655 EF edge-to-face 10 137652 E-F (D-E/F), type II 1 137656 E-F early diastolic flow 1 137653 E-F encephalitis the 'Encephalitis-Fragebogen 1 137651 E-F endosomal fusogen 1 137658 E-F enforcer-fighter 1 137657 E-F external standard-response factors 1 137659 E-F eye-foot 1