Efek ko-kultur sel stelata hepatik (LX-2) dengan sel punca CD34+ asal darah tali pusat pada morfologi sel, ekspresi TGF-B, tenascin-c dan kolagen tipe 1A1 = Effect of hepatic stellate cells (LX-2) and umbilical cord blood CD34+ stem cells co-culture on cell morphology, TGF-Beta, tenascin-C and collagen type 1A1 expression / Wahyunia Likhayati Septiana