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. 2009 Jul 9;15(1):27–37. doi: 10.1007/s12199-009-0091-z

Fig. 2.

Fig. 2

Changes in salivary cortisol concentration at six measurement times in subjects a forest area and in a city area [42]. n = 9 at “before walking” and “after walking”, n = 11 at the other times. *p < 0.05 by the paired t test