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. Author manuscript; available in PMC: 2017 Jul 19.
Published in final edited form as: Respir Med. 2016 Oct 21;121:59–66. doi: 10.1016/j.rmed.2016.10.011

Fig. 4.

Fig. 4

Classification tree analysis of metabolomics data. (AN = Asthma Normal Weight; AO = Asthma Overweight; CN = Control Normal Weight; CO = Control Overweight) The analysis shows the combination of the 2 molecules (isopropylmalic acid and betaine) responsible for the differentiation of asthma from controls, and asthma overweight from the other subgroups.