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. 2019 Aug 30;14(8):e0214040. doi: 10.1371/journal.pone.0214040

Fig 2. Directed acyclic graph showing hypothesised influence on cortisol and QoL2 by allergic diseases above the red line, and observed influence in the bronchiolitis group below the red line.

Fig 2

The red line indicates the net result from the influence of allergic disease on the association between morning salivary cortisol and QoL2.