Smith, A, Thomas, M and Whitney, H (2000) 'Effects of upper respiratory tract illnesses on mood and performance over the working day.' Ergonomics, 43 (6). pp. 752-763.
Thomas, M and Whitney, H (2000) 'After-effects of the common cold on mood and performance.' Ergonomics, 43 (9). pp. 1342-1349.
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