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. 2022 Jan 11;12:16. doi: 10.1038/s41398-021-01679-y

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Fig. 2 — BMI of 18.5–24.9 kg/m2 (normal weight), 25–29.9 kg/m2 (overweight), 30–34.9 kg/m2 (obese I), and 35 kg/m2 (obese II). Low and high FGF21 are defined as 25th and 75th percentiles, respectively.