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Royal KA, Farrow D, Mujika I, Halson SL, Pyne D, Abernethy B.Royal KA, et al. Among authors: mujika i.J Sports Sci. 2006 Aug;24(8):807-15. doi: 10.1080/02640410500188928.J Sports Sci. 2006.PMID: 16815774Clinical Trial.