Sonic Hedgehog Signaling Drives Proliferation of Synoviocytes in Rheumatoid Arthritis: A Possible Novel Therapeutic Target oleh Mingxia Wang, Shangling Zhu, Weixiang Peng, Qiuxia Li, Zhaoxia Li, Minqi Luo, Xiaoxue Feng, Zhuofeng Lin, Jianlin Huang