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Factor BFactor,Bacterial FertilityFactor,Bacterial SexFactor,BacteriocinFactor Ba,Properdinfactor-basedFactor B,ComplementFactor B complement componentFactor-beta,Glia MaturationFactor,beta-Nerve GrowthFactor Bf,ProperdinFactor,BiologicFactor,Biologicalfactor blockingFactor,Blood Coagulationfactor B,properdinFactor,Brain-Derived NeurotrophicFactor,B-Subunit CCAAT-Bindingfactor bulidingfactor burdenfactor CFactor,C3 Nephriticfactor categoryFactor,Ciliary NeuronotrophicFactor,Ciliary Neurotrophic |