2129026 exRNAs extracellular RNAs 74 2129025 exRNAs exosomes and microvesicles containing several species of RNAs 1 2129027 exRNAs Extracellular or cell-free RNAs 1 2129022 exRNAs extracellular RNA molecules 1 2129024 exRNAs Extracellular small non-coding RNAs 1 2129023 exRNAs self-extracellular RNA species 1