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Figure 5. Nighttime excretion of adrenalin, noradrenaline and cortisol in 18 controls and 26 test persons living next to noisy streets and sleeping with open and closed windows.

Figure 5. Nighttime excretion of adrenalin,
noradrenaline and cortisol in 18 controls
and 26 test persons living next to noisy
streets and sleeping with open and closed
windows.