Analisis Ekspresi TGF- β1 dan Interleukin-10 pada Proses Perbaikan Fibrois Hati Tikus yang Diberikan Sel Punca Mesenkim Asal Tali Pusat Manusia = Analysis of TGF- β1 and Interleukin-10 Expression in the Repair of Liver Fibrosis in Rats Treated by Human Umbilical Cord-Derived Mesenchymal Stem Cells.