(((("Transforming Growth Factor beta1"[MeSH Terms]) OR ("TGF-beta1"[MeSH Terms]) OR ("TGF-beta1"[Title/Abstract]))) AND ((("Polymorphism, Genetic"[MeSH Terms]) OR ("Polymorphism"[MeSH Terms]) OR ("Genetic Variation"[MeSH Terms]) OR ("SNP"[Title/Abstract])))) AND ((("Hepatitis C"[MeSH Terms]) OR ("HCV"[Title/Abstract]))) AND ((("Cirrhosis"[MeSH Terms]) OR ("Liver Cirrhosis"[MeSH Terms]) OR ("Liver Fibrosis"[MeSH Terms]) OR ("Hepatic Fibrosis"[MeSH Terms]) OR ("Hepatic Cirrhosis"[MeSH Terms])))). Here, TGFB1 is linked to Hepatic fibrosis.