1. Adair, L.A., Pollitt, E. and Mueller, W. H. (1984). ‘The Bacon Chow study: effect of nutritional supplementation on maternal weight and skinfold thickness during pregnancy and lactation’, British Journal of Nutrition, vol. 51, pp. 357–69.
2. Ainsworth, B. E., Haskell, W. L., Leon, A. S., Jacobs, D. R., Montoye, H. J., Sallis, J. F. and Paffenbarger, R. S. (1993), ‘Compendium of Physical Activities: classification of energy costs of human physical activities’, Medicine and Science in Sports and Exercise, vol. 25, pp. 71–80.
3. Astrup, A., Buemann, B., Christensen, J. N., Madsen, J., Gluud, C, Bennett, P. and Svenstrup, B. (1992), ‘The contribution of body composition, substrates, and hormones to the variability in energy expenditure and substrates utilization in premenopausal women’, Journal of Clinical Endocrinology and Metabolism, vol. 74, pp. 279–86.
4. Bailey, R. C, Jenike, M. R., Ellison, P. T., Bentley, G. R., Harrigan, A. M. and Peacock, N. R. (1992), ‘The ecology of birth seasonality among agriculturalists in central Africa’, Journal of Biosocial Science, vol. 24, pp. 393–412.
5. Beer, S. F., Bircham, P. M. M., Bloom, S. R., Clark, P. M., Hales, C. N., Hughes, C. M., Jones, C. T., Marsh, D. R., Raggatt, P. R. and Findlay, A. L. R. (1989), The effect of a 72-h fast on plasma levels of pituitary, adrenal, thyroid, pancreatic, and gastrointestinal hormones in healthy men and women’, Journal of Endocrinology, vol. 118, pp. 337–50.