The Diurnal Variation in Perception of Pain

Blake M J F . (1967) Nature (London) 215, 896–897

(1971) In: Biological Rhythms and Human Performance. Ed. Colquhoun W P . Academic Press, London; Ch. 3

Conroy R T W L . & Mills J N . (1970) Human Orcadian Rhythms, Churchill, London

Eysenck H J . & Eysenck S B . (1963) Manual of the Eysenck Personality Inventory. University of London Press, London

Folkard S . (1975) In: Proceedings of the Third International Symposium on Night and Shift Work. Ed. Colquhoun W P , Folkard S , Knauth P . & Rutenfranz J . Westdeutscher Verlag, Opladen

Hardy J D , Goodell H . & Wolff H G . (1951) Science 114, 149

Kleitman N . (1963) Sleep and Wakefulness. University of Chicago Press, Chicago

Mersky H . (1973) Journal of Psychosomatic Research 17, 251–255

Ede M C Moore . (1973) Clinical Pharmacology and Therapeutics 14, 925–935

Procacci P . (1972) In: Pain. Ed. Janzen R. , Keidel W D , Herz A . & Steichele C . (English edn. ed. Payne J P . & Burt R A P ). Churchill-Livingstone, London; pp 45–47

Shagass C . & Kerenyi A B . (1958) Journal of Nervous and Mental Diseases 126, 141–147