ESI: erector spine index, ALT: alanine transaminase, AST: aspartate transaminase, GGT: γ-glutamyl transferase, INR: international normalized ratio, WBC: white blood cell count, MELD: model for end-stage liver disease, MELD-Na: MELD-Sodium, SBP: spontaneous bacterial peritonitis. The gene discussed is GPT; the disease is liver disorder.