Transplantation of Cardiac Mesenchymal Stem Cell-Derived Exosomes for Angiogenesis TangYaoliang 2019 <div>our study demonstrated that intramuscular delivery of C-MSC-Exo after limb ischemia improves blood perfusion, and we identified the most abundant miRNAs that are preferentially enriched in C-MSC-Exo.</div>