TIMP1 and Hepatic fibrosis: WFA-M2BP and ELF score are more specific to the kinetics of liver fibrosis progression than are AST, ALT, and Plt because WFA-M2BP, hyaluronic acid, PIIINP, and TIMP-1 are secreted by the key player of liver fibrogenesis; activated hepatic stellate cells or myofibroblasts [29].