An Exploratory Study into the Effect of Exhausting Bicycle Exercise on Endocrine and Immune Responses in Post-Menopausal Women: Relationships between Vigour and Plasma Cortisol Concentrations and Lymphocyte Proliferation following Exercise - Pompe van der, G; Bernards, N; Kavelaars, A; Heijnen, C (International Journal of Sports Medicine, 2001)