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Kaplan–Meier curves for graft survival after liver transplantation in patient groups stratified by body mass index (BMI). Group 1: <18.0 kg/m2; Group 2: 18.0–24.9 kg/m2; Group 3: 25.0–29.9 kg/m2; Group 4: 30.0–35.0 kg/m2; Group 5: 35.1–40.0 kg/m2; Group 6: >40 kg/m2
