Extracellular Vesicles Secreted by Human Adipose-derived Stem Cells (hASCs) Improve Survival Rate of Rats with Acute Liver Failure by Releasing lncRNA H19人脂肪干细胞 (hASCs) 分泌的细胞外囊泡通过释放lncRNA H19提高急性肝衰竭大鼠的存活率EBIOMEDICINEIF10.82018-08-0161OAAI