Introduction to Biofluid MicroRNA Sequencing Extracellular RNAs (exRNA) have previously been introduced in plasma and other body fluids as novel biomarkers and potential cell-cell communicators. MicroRNAs (miRNA) have been involved in a wide variety of illnesses, such as heart failure, cancer, and multiple sclerosis, and are the most researched class of exRNAs to date. miRNAs are small...