Extracellular vesicles of human transformed skin‐derived precursors containing <scp>miR</scp> ‐221‐3p promote hair growth through <scp>DKK2</scp> ‐mediated Wnt/ <scp> <i>β</i> </scp> ‐catenin signalingLingyun Zhao, Li Li, Wei Hua et al.|Bioengineering & Translational Medicine|2026Cited by 0