Safety and Efficacy Study of Umbilical Cord/Placenta-Derived Mesenchymal Stem Cells to Treat Ankylosing Spondylitis (AS) Safety and Efficacy Study of UmbilicalCord/Placenta-Derived Mesenchymal Stem Cells to Treat Ankylosi ...
Phase II Study of Umbilical Cord/Placenta-Derived Mesenchymal Stem Cells to Treat AS