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Combinations of LAS,max and frequency of occurrence for laboratory studies one and two. The numbers within the matrix indicate the sum of subjects exposed to the corresponding combination, e.g. 24 subject nights for the combination 8 60 dB(A).

Combinations of LAS,max and frequency of occurrence for laboratory studies one and two. The numbers within the matrix indicate the sum of subjects exposed to the corresponding combination, e.g. 24 subject nights for the combination 8  60 dB(A).