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. 2017 Jan 28;18(1):9. doi: 10.1186/s10194-017-0724-3

Fig. 1.

Fig. 1

Between and within group comparisons for cortisol (a), PGE2 (b) and SPO (c). SF: Simulated flight. Bars indicate SD. *: p < 0.05. **: p < 0.001