Correction: MiR-137 promotes TLR4/NF-κB pathway activity through targeting KDM4 A, inhibits osteogenic diferentiation of human bone marrow mesenchymal stem cells and aggravates osteoporosis - Ying-feng Yu; Pei-quan Yao; Zhi-kun Wang; Wen-wei Xie (Journal of Orthopaedic Surgery and Research)