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Participant screening flowchart. BMI, body mass index; WC, waist circumference; GGT, gamma-glutamyl transferase; TG, triglyceride; HDL-C, high-density lipoprotein cholesterol; PIR, poverty-to-income ratio; CHD, coronary heart disease; HbA1c, hemoglobin A1c; AST, aspartate aminotransferase; TBIL, total bilirubin.
