Micro Fragmented Adipose Tissue Promotes the Matrix Synthesis Function of Nucleus Pulposus Cells and Regenerates Degenerated Intervertebral Disc in a Pig Model oleh Xiaopeng Zhou, Feng Zhang, Dawei Wang, Jingkai Wang, Chenggui Wang, Kaishun Xia, Liwei Ying, Xianpeng Huang, Yiqing Tao, Shouyong Chen, Deting Xue, Jianming Hua, Chengzhen Liang, Qixin Chen, Fangcai Li