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Lopinavir hair concentrations by virologic suppression category. Lopinavir (LPV) hair concentrations (ng/mg of hair) in children who had viral load (VL) ≥1,000 (left) and <1,000 copies/ml (right). The box shows the interquartile range (IQR) and the white line in the center shows the median. Whiskers show the lowest and highest points within 1.5 times the IQR.
