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Box plots for rifampicin, isoniazid, pyrazinamide, and ethambutol peak concentration (Cmax) in children treated for tuberculosis, by weight band. Horizontal reference lines represent the target reference ranges for Cmax recommended by Alsultan and Peloquin [16]: 3–6 mg/L, 8–24 mg/L, 20–60 mg/L, and 2–6 mg/L for isoniazid, rifampin, pyrazinamide, and ethambutol, respectively.
