Wu Y, Ren M, Yang R, Liang X, Ma Y, Tang Y, Huang L, Ye J, Chen K, Wang P, et al. Retraction Note: Reduced immunomodulation potential of bone marrow-derived mesenchymal stem cells induced CCR4CCR6 Th/Treg cell subset imbalance in ankylosing spondylitis. Arthritis Res Ther. 2024;26(1):89.