Suspected non-adherence and weekend versus week day differences in the awakening cortisol response
Thorn, L., Hucklebridge, F., Evans, P. and Clow, A. 2006. Suspected non-adherence and weekend versus week day differences in the awakening cortisol response. Psychoneuroendocrinology. 31 (8), pp. 1009-1018. https://doi.org/10.1016/j.psyneuen.2006.05.012