2642337 ELFs electron localization functions 9 2642338 ELFs early life factors 4 2642330 ELFs extremely low frequencies 3 2642340 ELFs ectopic lymphoid follicles 2 2642335 ELFs energy-loss functions 2 2642332 ELFs epithelial lining fluids 2 2642344 ELFs E47-like factors 1 2642339 ELFs early-labelled fragments 1 2642342 ELFs electrophoretogram fractions 1 2642343 ELFs elementary functional loops 1 2642336 ELFs embryonic lung fibroblasts 1 2642334 ELFs endometrial-leiomyoma fistulas 1 2642333 ELFs engineered landfills 1 2642331 ELFs engineered light frequencies 1 2642341 ELFs Environmental limiting factors 1 2642345 ELFs ES luminal fluids 1