137763 EF ejection fraction 13527 137648 EF enrichment factor 1088 137647 EF enhancement factor 528 137819 EF electric field 444 137702 EF emission factor 174 137989 EF Enterococcus faecalis 104 137646 EF Fermi energy 65 138334 EF etiologic fraction 58 137643 EF efficiency 50 137649 EF Fermi energy level 23 137644 Ef formation energy 15 138530 ef effect 13 137739 EF elongation factor 1-alpha 12 138130 EF E. faecalis 7 138088 EF Eigenfactor 6 138565 Ef E. fetida 4 138131 EF E. faecium 3 137777 Ef efferent 3 137918 Ef edelfosine 2 138562 Ef efferent arterioles 2 138561 Ef efficacy 2 138544 Ef energy of the interface 2 137956 Ef Escherichia fergusonii 2 138564 Ef E. foliate 1 138560 Ef Effective dose 1 138551 Ef effectively expanded the Fermi level 1 138552 Ef effector 1 138553 Ef effervescent tablets 1 138550 Ef efficiency score 1 138549 Ef efficient tunability of Fermi level 1 138557 Ef electrons flow from high-Fermi-level 1 138559 Ef elevated Fermi level 1 138558 Ef elongation at fracture 1 138555 Ef energy cost of fat deposition 1 138554 Ef energy density factor 1 138556 Ef energy of the fall 1 138543 Ef energy yield of fluorescence 1 138545 Ef enhanced transformation factor 1 138563 Ef Ensifer fredii 1 138567 Ef Enterococcus faecalis strain 1 138546 Ef ethanol-associated flavor 1 138568 Ef Eucommiae folium 1 138547 Ef exhibit lower formation energy 1 138542 Ef fiber elastic modulus 1 138541 Ef flexural elastic modulus 1 138566 Ef FRP elastic modulus 1 138548 Ef tensor-fitting error 1