TNF and End Stage Liver Disease: NR, not reported; HE, hepatic encephalopathy; MELD, model for end-stage liver disease; MDF, Maddrey discriminant function; ANC, absolute neutrophil count; AST, aspartate aminotransferase; ALT, alanine aminotransferase; CRP, C-reactive protein; TNF, tumor necrosis factor; PT, prothrombin time; WBC, white blood cell; HVPG, hepatic venous pressure gradient; IL, interleukin