article 2017 11 pages T-regulatory cells exhibit a biphasic response to prolonged endurance exercise in humans Tom Clifford, Matthew J. Wood, Philip Stocks, Glyn Howatson, Emma J. Stevenson, Catharien M. U. Hilkens JournalEuropean Journal of Applied PhysiologyDOI10.1007/s00421-017-3667-0Publication typeOriginal ResearchPopulationexperienced runners View on DOI ↗