'Caution, this treatment is a placebo. It might work, but it might not': why emerging mechanistic evidence for placebo effects does not legitimise complementary and alternative medicines in sport. Issue 13 (19th July 2017) - Beedie, Chris; Whyte, Greg; Lane, Andrew M; Cohen, Emma; Raglin, John; Hurst, Phil; Coleman, Damian; Foad, Abby