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. 2018 Mar 6;13(3):e0193963. doi: 10.1371/journal.pone.0193963

Fig 2. Diurnal trajectories of salivary α-amylase and cortisol before and after CVT stimulation.

Fig 2

Data are expressed as the mean±SE. *,**: p<0.01 and p<0.001, respectively, vs before the CVT.